72634220635 has 8 divisors (see below), whose sum is σ = 87163023600. Its totient is φ = 58106070624.

The previous prime is 72634220597. The next prime is 72634220653. The reversal of 72634220635 is 53602243627.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72634220635 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129084 + ... + 402406.

It is an arithmetic number, because the mean of its divisors is an integer number (10895377950).

Almost surely, 2^72634220635 is an apocalyptic number.

72634220635 is a deficient number, since it is larger than the sum of its proper divisors (14528802965).

72634220635 is a wasteful number, since it uses less digits than its factorization.

72634220635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326477.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 72634220635 in words is "seventy-two billion, six hundred thirty-four million, two hundred twenty thousand, six hundred thirty-five".