38781056520436 has 6 divisors (see below), whose sum is σ = 67866848910770. Its totient is φ = 19390528260216.

The previous prime is 38781056520419. The next prime is 38781056520491. The reversal of 38781056520436 is 63402565018783.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 32066511052900 + 6714545467536 = 5662730^2 + 2591244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4847632065051 + ... + 4847632065058.

Almost surely, 2^{38781056520436} is an apocalyptic number.

It is an amenable number.

38781056520436 is a deficient number, since it is larger than the sum of its proper divisors (29085792390334).

38781056520436 is a wasteful number, since it uses less digits than its factorization.

38781056520436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695264130113 (or 9695264130111 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 38781056520436 in words is "thirty-eight trillion, seven hundred eighty-one billion, fifty-six million, five hundred twenty thousand, four hundred thirty-six".