13641940940 has 24 divisors (see below), whose sum is σ = 28854183120. Its totient is φ = 5417517888.

The previous prime is 13641940931. The next prime is 13641940943. The reversal of 13641940940 is 4904914631.

It is a super-2 number, since 2×13641940940² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13641940943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2450807 + ... + 2456366.

It is an arithmetic number, because the mean of its divisors is an integer number (1202257630).

Almost surely, 2^13641940940 is an apocalyptic number.

13641940940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13641940940 is an abundant number, since it is smaller than the sum of its proper divisors (15212242180).

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

13641940940 is a wasteful number, since it uses less digits than its factorization.

13641940940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907321 (or 4907319 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 13641940940 in words is "thirteen billion, six hundred forty-one million, nine hundred forty thousand, nine hundred forty".