72818874695245 has 32 divisors (see below), whose sum is σ = 102193745778432. Its totient is φ = 48769135091712.

The previous prime is 72818874695173. The next prime is 72818874695257. The reversal of 72818874695245 is 54259647881827.

It is not a de Polignac number, because 72818874695245 - 2⁹ = 72818874694733 is a prime.

It is a super-2 number, since 2×72818874695245² (a number of 29 digits) contains 22 as substring.

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, 27436459 + ... + 29973271.

It is an arithmetic number, because the mean of its divisors is an integer number (3193554555576).

Almost surely, 2^{72818874695245} is an apocalyptic number.

It is an amenable number.

72818874695245 is a deficient number, since it is larger than the sum of its proper divisors (29374871083187).

72818874695245 is a wasteful number, since it uses less digits than its factorization.

72818874695245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555941.

The product of its digits is 2167603200, while the sum is 76.

The spelling of 72818874695245 in words is "seventy-two trillion, eight hundred eighteen billion, eight hundred seventy-four million, six hundred ninety-five thousand, two hundred forty-five".