13878962440 has 64 divisors (see below), whose sum is σ = 35714764800. Its totient is φ = 4755034368.

The previous prime is 13878962417. The next prime is 13878962483. The reversal of 13878962440 is 4426987831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382777 + ... + 417463.

It is an arithmetic number, because the mean of its divisors is an integer number (558043200).

Almost surely, 2^13878962440 is an apocalyptic number.

13878962440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13878962440 is an abundant number, since it is smaller than the sum of its proper divisors (21835802360).

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

13878962440 is a wasteful number, since it uses less digits than its factorization.

13878962440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36134 (or 36130 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 13878962440 in words is "thirteen billion, eight hundred seventy-eight million, nine hundred sixty-two thousand, four hundred forty".