72537641122 has 12 divisors (see below), whose sum is σ = 115583335650. Its totient is φ = 34135360256.

The previous prime is 72537641093. The next prime is 72537641161. The reversal of 72537641122 is 22114673527.

It can be written as a sum of positive squares in 3 ways, for example, as 68115258121 + 4422383001 = 260989^2 + 66501^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62748247 + ... + 62749402.

Almost surely, 2^72537641122 is an apocalyptic number.

72537641122 is a deficient number, since it is larger than the sum of its proper divisors (43045694528).

72537641122 is a wasteful number, since it uses less digits than its factorization.

72537641122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125497685 (or 125497668 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The spelling of 72537641122 in words is "seventy-two billion, five hundred thirty-seven million, six hundred forty-one thousand, one hundred twenty-two".