102440579522 has 18 divisors (see below), whose sum is σ = 154495731897. Its totient is φ = 50943501624.

The previous prime is 102440579489. The next prime is 102440579539. The reversal of 102440579522 is 225975044201.

102440579522 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 86682547561 + 15758031961 = 294419^2 + 125531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=226319.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102440579522.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 102748328 + ... + 102749324.

Almost surely, 2^102440579522 is an apocalyptic number.

102440579522 is a deficient number, since it is larger than the sum of its proper divisors (52055152375).

102440579522 is an frugal number, since it uses more digits than its factorization.

102440579522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 1226 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 102440579522 in words is "one hundred two billion, four hundred forty million, five hundred seventy-nine thousand, five hundred twenty-two".