8772385638 has 16 divisors (see below), whose sum is σ = 17548704576. Its totient is φ = 2923473000.

The previous prime is 8772385637. The next prime is 8772385651. The reversal of 8772385638 is 8365832778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8772385637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134488 + ... + 188763.

It is an arithmetic number, because the mean of its divisors is an integer number (1096794036).

Almost surely, 2^8772385638 is an apocalyptic number.

8772385638 is an abundant number, since it is smaller than the sum of its proper divisors (8776318938).

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

8772385638 is a wasteful number, since it uses less digits than its factorization.

8772385638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327779.

The product of its digits is 13547520, while the sum is 57.

The square root of 8772385638 is about 93661.0145044351. The cubic root of 8772385638 is about 2062.3984410745.

The spelling of 8772385638 in words is "eight billion, seven hundred seventy-two million, three hundred eighty-five thousand, six hundred thirty-eight".