38656240263 has 48 divisors (see below), whose sum is σ = 57005977600. Its totient is φ = 25237630080.

The previous prime is 38656240261. The next prime is 38656240291. The reversal of 38656240263 is 36204265683.

It is a happy number.

38656240263 is a `hidden beast` number, since 3 + 86 + 562 + 4 + 0 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 38656240263 - 2¹ = 38656240261 is a prime.

It is a super-2 number, since 2×38656240263² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38656240261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84586731 + ... + 84587187.

Almost surely, 2^38656240263 is an apocalyptic number.

38656240263 is a deficient number, since it is larger than the sum of its proper divisors (18349737337).

38656240263 is a wasteful number, since it uses less digits than its factorization.

38656240263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 38656240263 in words is "thirty-eight billion, six hundred fifty-six million, two hundred forty thousand, two hundred sixty-three".