538397181952 has 96 divisors (see below), whose sum is σ = 1233343238400. Its totient is φ = 230174982144.

The previous prime is 538397181941. The next prime is 538397181979. The reversal of 538397181952 is 259181793835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5817513 + ... + 5909335.

It is an arithmetic number, because the mean of its divisors is an integer number (12847325400).

Almost surely, 2^538397181952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538397181952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616671619200).

538397181952 is an abundant number, since it is smaller than the sum of its proper divisors (694946056448).

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

538397181952 is an equidigital number, since it uses as much as digits as its factorization.

538397181952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92261 (or 92241 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 61.

The spelling of 538397181952 in words is "five hundred thirty-eight billion, three hundred ninety-seven million, one hundred eighty-one thousand, nine hundred fifty-two".