538358423520 has 96 divisors (see below), whose sum is σ = 1795583710368. Its totient is φ = 135117406208.

The previous prime is 538358423429. The next prime is 538358423567. The reversal of 538358423520 is 25324853835.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 538358423520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32979489 + ... + 32995808.

It is an arithmetic number, because the mean of its divisors is an integer number (18703996983).

Almost surely, 2^538358423520 is an apocalyptic number.

It is an amenable number.

538358423520 is an abundant number, since it is smaller than the sum of its proper divisors (1257225286848).

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

538358423520 is a wasteful number, since it uses less digits than its factorization.

538358423520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65975332 (or 65975324 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 538358423520 in words is "five hundred thirty-eight billion, three hundred fifty-eight million, four hundred twenty-three thousand, five hundred twenty".