13400774487 has 32 divisors (see below), whose sum is σ = 20745676800. Its totient is φ = 8533251936.

The previous prime is 13400774483. The next prime is 13400774507. The reversal of 13400774487 is 78447700431.

13400774487 is a `hidden beast` number, since 134 + 0 + 0 + 77 + 448 + 7 = 666.

It is not a de Polignac number, because 13400774487 - 2² = 13400774483 is a prime.

It is a super-2 number, since 2×13400774487² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400774483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 431493 + ... + 461505.

It is an arithmetic number, because the mean of its divisors is an integer number (648302400).

Almost surely, 2^13400774487 is an apocalyptic number.

13400774487 is a deficient number, since it is larger than the sum of its proper divisors (7344902313).

13400774487 is a wasteful number, since it uses less digits than its factorization.

13400774487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30764 (or 30758 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 13400774487 in words is "thirteen billion, four hundred million, seven hundred seventy-four thousand, four hundred eighty-seven".