13778149464 has 64 divisors (see below), whose sum is σ = 38630390400. Its totient is φ = 4549786272.

The previous prime is 13778149447. The next prime is 13778149501. The reversal of 13778149464 is 46494187731.

It is a happy number.

13778149464 is a `hidden beast` number, since 1 + 3 + 77 + 81 + 494 + 6 + 4 = 666.

13778149464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 13778149464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274962 + ... + 321185.

It is an arithmetic number, because the mean of its divisors is an integer number (603599850).

Almost surely, 2^13778149464 is an apocalyptic number.

It is an amenable number.

13778149464 is an abundant number, since it is smaller than the sum of its proper divisors (24852240936).

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

13778149464 is a wasteful number, since it uses less digits than its factorization.

13778149464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596269 (or 596259 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 13778149464 in words is "thirteen billion, seven hundred seventy-eight million, one hundred forty-nine thousand, four hundred sixty-four".