38847621604 has 135 divisors (see below), whose sum is σ = 82039545903. Its totient is φ = 16083196800.

The previous prime is 38847621569. The next prime is 38847621607. The reversal of 38847621604 is 40612674883.

The square root of 38847621604 is 197098.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 12056479204 + 26791142400 = 109802^2 + 163680^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38847621607) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1253149069 + ... + 1253149099.

Almost surely, 2^38847621604 is an apocalyptic number.

38847621604 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38847621604 is the 197098-th square number.

It is an amenable number.

38847621604 is an abundant number, since it is smaller than the sum of its proper divisors (43191924299).

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

38847621604 is an equidigital number, since it uses as much as digits as its factorization.

38847621604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

Multiplying 38847621604 by its sum of digits (49), we get a square (1903533458596 = 1379686²).

The spelling of 38847621604 in words is "thirty-eight billion, eight hundred forty-seven million, six hundred twenty-one thousand, six hundred four".