72696671630 has 16 divisors (see below), whose sum is σ = 142749828144. Its totient is φ = 26435153280.

The previous prime is 72696671627. The next prime is 72696671693. The reversal of 72696671630 is 3617669627.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330439307 + ... + 330439526.

It is an arithmetic number, because the mean of its divisors is an integer number (8921864259).

Almost surely, 2^72696671630 is an apocalyptic number.

72696671630 is a deficient number, since it is larger than the sum of its proper divisors (70053156514).

72696671630 is a wasteful number, since it uses less digits than its factorization.

72696671630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660878851.

The product of its (nonzero) digits is 3429216, while the sum is 53.

The spelling of 72696671630 in words is "seventy-two billion, six hundred ninety-six million, six hundred seventy-one thousand, six hundred thirty".