38717274807765 has 24 divisors (see below), whose sum is σ = 67918496536800. Its totient is φ = 20400427527264.

The previous prime is 38717274807707. The next prime is 38717274807769. The reversal of 38717274807765 is 56770847271783.

It is a happy number.

38717274807765 is a `hidden beast` number, since 3 + 8 + 7 + 1 + 72 + 7 + 480 + 7 + 76 + 5 = 666.

It is not a de Polignac number, because 38717274807765 - 2¹¹ = 38717274805717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38717274807693 and 38717274807702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38717274807769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5183031715 + ... + 5183039184.

It is an arithmetic number, because the mean of its divisors is an integer number (2829937355700).

Almost surely, 2^{38717274807765} is an apocalyptic number.

It is an amenable number.

38717274807765 is a deficient number, since it is larger than the sum of its proper divisors (29201221729035).

38717274807765 is a wasteful number, since it uses less digits than its factorization.

38717274807765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366070993 (or 10366070990 counting only the distinct ones).

The product of its (nonzero) digits is 774466560, while the sum is 72.

The spelling of 38717274807765 in words is "thirty-eight trillion, seven hundred seventeen billion, two hundred seventy-four million, eight hundred seven thousand, seven hundred sixty-five".