1538949829564 has 12 divisors (see below), whose sum is σ = 3077899659184. Its totient is φ = 659549926944.

The previous prime is 1538949829553. The next prime is 1538949829649. The reversal of 1538949829564 is 4659289498351.

1538949829564 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27481246929 + ... + 27481246984.

Almost surely, 2^{1538949829564} is an apocalyptic number.

1538949829564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1538949829564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1538949829564 is a wasteful number, since it uses less digits than its factorization.

1538949829564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54962493924 (or 54962493922 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 73.

The spelling of 1538949829564 in words is "one trillion, five hundred thirty-eight billion, nine hundred forty-nine million, eight hundred twenty-nine thousand, five hundred sixty-four".