72606626530 has 16 divisors (see below), whose sum is σ = 133879536504. Its totient is φ = 28334293120.

The previous prime is 72606626503. The next prime is 72606626537. The reversal of 72606626530 is 3562660627.

It can be written as a sum of positive squares in 4 ways, for example, as 27773222409 + 44833404121 = 166653^2 + 211739^2 .

It is not an unprimeable number, because it can be changed into a prime (72606626537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88544257 + ... + 88545076.

Almost surely, 2^72606626530 is an apocalyptic number.

72606626530 is a deficient number, since it is larger than the sum of its proper divisors (61272909974).

72606626530 is a wasteful number, since it uses less digits than its factorization.

72606626530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177089381.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 72606626530 in words is "seventy-two billion, six hundred six million, six hundred twenty-six thousand, five hundred thirty".