13896279450 has 144 divisors (see below), whose sum is σ = 38823408000. Its totient is φ = 3559248000.

The previous prime is 13896279443. The next prime is 13896279457. The reversal of 13896279450 is 5497269831.

13896279450 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 627 + 9 + 4 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (13896279443) and next prime (13896279457).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13896279457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2594275 + ... + 2599625.

It is an arithmetic number, because the mean of its divisors is an integer number (269607000).

It is a 1-persistent number, because it is pandigital, but 2⋅13896279450 = 27792558900 is not.

Almost surely, 2^13896279450 is an apocalyptic number.

13896279450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13896279450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19411704000).

13896279450 is an abundant number, since it is smaller than the sum of its proper divisors (24927128550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13896279450 is a wasteful number, since it uses less digits than its factorization.

13896279450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597 (or 5589 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 13896279450 in words is "thirteen billion, eight hundred ninety-six million, two hundred seventy-nine thousand, four hundred fifty".