13913791400 has 48 divisors (see below), whose sum is σ = 32361617340. Its totient is φ = 5563443200.

The previous prime is 13913791399. The next prime is 13913791421. The reversal of 13913791400 is 419731931.

It can be written as a sum of positive squares in 6 ways, for example, as 11929445284 + 1984346116 = 109222^2 + 44546^2 .

It is a super-2 number, since 2×13913791400² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 596762 + ... + 619638.

Almost surely, 2^13913791400 is an apocalyptic number.

13913791400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13913791400 is an abundant number, since it is smaller than the sum of its proper divisors (18447825940).

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

13913791400 is a wasteful number, since it uses less digits than its factorization.

13913791400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25934 (or 25925 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 13913791400 in words is "thirteen billion, nine hundred thirteen million, seven hundred ninety-one thousand, four hundred".