52619626418 has 18 divisors (see below), whose sum is σ = 83312020701. Its totient is φ = 24922166544.

The previous prime is 52619626403. The next prime is 52619626427. The reversal of 52619626418 is 81462691625.

52619626418 is digitally balanced in base 2, 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 43182086809 + 9437539609 = 207803^2 + 97147^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=162203.

It is a Duffinian number.

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, 6159446 + ... + 6167982.

Almost surely, 2^52619626418 is an apocalyptic number.

52619626418 is a deficient number, since it is larger than the sum of its proper divisors (30692394283).

52619626418 is an frugal number, since it uses more digits than its factorization.

52619626418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17114 (or 8558 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

Multiplying 52619626418 by its sum of digits (50), we get a square (2630981320900 = 1622030²).

The spelling of 52619626418 in words is "fifty-two billion, six hundred nineteen million, six hundred twenty-six thousand, four hundred eighteen".