72636752523626 has 8 divisors (see below), whose sum is σ = 108955172913444. Its totient is φ = 36318361552480.

The previous prime is 72636752523623. The next prime is 72636752523631. The reversal of 72636752523626 is 62632525763627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65768028843001 + 6868723680625 = 8109749^2 + 2620825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72636752523623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492566 + ... + 12063006.

Almost surely, 2^{72636752523626} is an apocalyptic number.

72636752523626 is a deficient number, since it is larger than the sum of its proper divisors (36318420389818).

72636752523626 is a wasteful number, since it uses less digits than its factorization.

72636752523626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14709336.

The product of its digits is 228614400, while the sum is 62.

The spelling of 72636752523626 in words is "seventy-two trillion, six hundred thirty-six billion, seven hundred fifty-two million, five hundred twenty-three thousand, six hundred twenty-six".