13878038380 has 24 divisors (see below), whose sum is σ = 29169205632. Its totient is φ = 5546391552.

The previous prime is 13878038371. The next prime is 13878038407. The reversal of 13878038380 is 8383087831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277852 + ... + 323971.

It is an arithmetic number, because the mean of its divisors is an integer number (1215383568).

Almost surely, 2^13878038380 is an apocalyptic number.

13878038380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13878038380 is an abundant number, since it is smaller than the sum of its proper divisors (15291167252).

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

13878038380 is a wasteful number, since it uses less digits than its factorization.

13878038380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602985 (or 602983 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 13878038380 in words is "thirteen billion, eight hundred seventy-eight million, thirty-eight thousand, three hundred eighty".