1538118197936 has 20 divisors (see below), whose sum is σ = 2980324963512. Its totient is φ = 769002078336.

The previous prime is 1538118197933. The next prime is 1538118197977. The reversal of 1538118197936 is 6397918118351.

It is not an unprimeable number, because it can be changed into a prime (1538118197933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340826 + ... + 3773241.

Almost surely, 2^{1538118197936} is an apocalyptic number.

1538118197936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1538118197936 is a deficient number, since it is larger than the sum of its proper divisors (1442206765576).

1538118197936 is a wasteful number, since it uses less digits than its factorization.

1538118197936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127588 (or 7127582 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 62.

The spelling of 1538118197936 in words is "one trillion, five hundred thirty-eight billion, one hundred eighteen million, one hundred ninety-seven thousand, nine hundred thirty-six".