72858007215 has 48 divisors (see below), whose sum is σ = 144449967168. Its totient is φ = 33278427648.

The previous prime is 72858007177. The next prime is 72858007219. The reversal of 72858007215 is 51270085827.

It is not a de Polignac number, because 72858007215 - 2¹⁴ = 72857990831 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72858007219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278857 + ... + 472733.

It is an arithmetic number, because the mean of its divisors is an integer number (3009374316).

Almost surely, 2^72858007215 is an apocalyptic number.

72858007215 is a deficient number, since it is larger than the sum of its proper divisors (71591959953).

72858007215 is a wasteful number, since it uses less digits than its factorization.

72858007215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195088 (or 195085 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The spelling of 72858007215 in words is "seventy-two billion, eight hundred fifty-eight million, seven thousand, two hundred fifteen".