538920801510 has 128 divisors (see below), whose sum is σ = 1592498202624. Its totient is φ = 113662863360.

The previous prime is 538920801493. The next prime is 538920801521. The reversal of 538920801510 is 15108029835.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7364622 + ... + 7437438.

It is an arithmetic number, because the mean of its divisors is an integer number (12441392208).

Almost surely, 2^538920801510 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538920801510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796249101312).

538920801510 is an abundant number, since it is smaller than the sum of its proper divisors (1053577401114).

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

538920801510 is a wasteful number, since it uses less digits than its factorization.

538920801510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75558.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 538920801510 in words is "five hundred thirty-eight billion, nine hundred twenty million, eight hundred one thousand, five hundred ten".