13870852640 has 96 divisors (see below), whose sum is σ = 33284442240. Its totient is φ = 5461530624.

The previous prime is 13870852637. The next prime is 13870852643. The reversal of 13870852640 is 4625807831.

It is an interprime number because it is at equal distance from previous prime (13870852637) and next prime (13870852643).

It is a junction number, because it is equal to n+sod(n) for n = 13870852591 and 13870852600.

It is not an unprimeable number, because it can be changed into a prime (13870852643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8630717 + ... + 8632323.

It is an arithmetic number, because the mean of its divisors is an integer number (346712940).

Almost surely, 2^13870852640 is an apocalyptic number.

13870852640 is a gapful number since it is divisible by the number (10) 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 13870852640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16642221120).

13870852640 is an abundant number, since it is smaller than the sum of its proper divisors (19413589600).

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

13870852640 is a wasteful number, since it uses less digits than its factorization.

13870852640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 13870852640 in words is "thirteen billion, eight hundred seventy million, eight hundred fifty-two thousand, six hundred forty".