13801970448 has 120 divisors (see below), whose sum is σ = 44400128448. Its totient is φ = 3920576256.

The previous prime is 13801970447. The next prime is 13801970449. The reversal of 13801970448 is 84407910831.

It is a happy number.

13801970448 is a `hidden beast` number, since 13 + 8 + 0 + 197 + 0 + 448 = 666.

It is an interprime number because it is at equal distance from previous prime (13801970447) and next prime (13801970449).

It is not an unprimeable number, because it can be changed into a prime (13801970447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134811 + ... + 213957.

Almost surely, 2^13801970448 is an apocalyptic number.

13801970448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13801970448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22200064224).

13801970448 is an abundant number, since it is smaller than the sum of its proper divisors (30598158000).

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

13801970448 is a wasteful number, since it uses less digits than its factorization.

13801970448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79341 (or 79332 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 13801970448 in words is "thirteen billion, eight hundred one million, nine hundred seventy thousand, four hundred forty-eight".