72318104445135 has 32 divisors (see below), whose sum is σ = 118454212419840. Its totient is φ = 37655397255168.

The previous prime is 72318104445121. The next prime is 72318104445143. The reversal of 72318104445135 is 53154440181327.

It is a happy number.

It is not a de Polignac number, because 72318104445135 - 2⁶ = 72318104445071 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24322194 + ... + 27133103.

It is an arithmetic number, because the mean of its divisors is an integer number (3701694138120).

Almost surely, 2^{72318104445135} is an apocalyptic number.

72318104445135 is a deficient number, since it is larger than the sum of its proper divisors (46136107974705).

72318104445135 is a wasteful number, since it uses less digits than its factorization.

72318104445135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51457527.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 72318104445135 in words is "seventy-two trillion, three hundred eighteen billion, one hundred four million, four hundred forty-five thousand, one hundred thirty-five".