38781568381136 has 40 divisors (see below), whose sum is σ = 85873807635264. Its totient is φ = 16620607365120.

The previous prime is 38781568381097. The next prime is 38781568381181. The reversal of 38781568381136 is 63118386518783.

It is a super-2 number, since 2×38781568381136² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38061131 + ... + 39066773.

Almost surely, 2^{38781568381136} is an apocalyptic number.

It is an amenable number.

38781568381136 is an abundant number, since it is smaller than the sum of its proper divisors (47092239254128).

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

38781568381136 is a wasteful number, since it uses less digits than its factorization.

38781568381136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349979 (or 1349973 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 68.

The spelling of 38781568381136 in words is "thirty-eight trillion, seven hundred eighty-one billion, five hundred sixty-eight million, three hundred eighty-one thousand, one hundred thirty-six".