38618564525 has 12 divisors (see below), whose sum is σ = 48361152084. Its totient is φ = 30588960000.

The previous prime is 38618564431. The next prime is 38618564527. The reversal of 38618564525 is 52546581683.

It can be written as a sum of positive squares in 6 ways, for example, as 3146985604 + 35471578921 = 56098^2 + 188339^2 .

It is not a de Polignac number, because 38618564525 - 2³⁰ = 37544822701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38618564527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7644716 + ... + 7649765.

It is an arithmetic number, because the mean of its divisors is an integer number (4030096007).

Almost surely, 2^38618564525 is an apocalyptic number.

It is an amenable number.

38618564525 is a deficient number, since it is larger than the sum of its proper divisors (9742587559).

38618564525 is a wasteful number, since it uses less digits than its factorization.

38618564525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15294592 (or 15294587 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 53.

The spelling of 38618564525 in words is "thirty-eight billion, six hundred eighteen million, five hundred sixty-four thousand, five hundred twenty-five".