38777440430256 has 80 divisors (see below), whose sum is σ = 111607023979008. Its totient is φ = 11500723782400.

The previous prime is 38777440430227. The next prime is 38777440430257. The reversal of 38777440430256 is 65203404477783.

It is a self number, because there is not a number n which added to its sum of digits gives 38777440430256.

It is not an unprimeable number, because it can be changed into a prime (38777440430257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781274355 + ... + 781323986.

Almost surely, 2^{38777440430256} is an apocalyptic number.

It is an amenable number.

38777440430256 is an abundant number, since it is smaller than the sum of its proper divisors (72829583548752).

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

38777440430256 is a wasteful number, since it uses less digits than its factorization.

38777440430256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562598410 (or 1562598404 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 60.

The spelling of 38777440430256 in words is "thirty-eight trillion, seven hundred seventy-seven billion, four hundred forty million, four hundred thirty thousand, two hundred fifty-six".