72858415535207 has 4 divisors (see below), whose sum is σ = 72879037790520. Its totient is φ = 72837793279896.

The previous prime is 72858415535189. The next prime is 72858415535267. The reversal of 72858415535207 is 70253551485827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72858415535207 - 2³² = 72854120567911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72858415535207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72858415535267) 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 3 ways as a sum of consecutive naturals, for example, 10311122357 + ... + 10311129422.

It is an arithmetic number, because the mean of its divisors is an integer number (18219759447630).

Almost surely, 2^{72858415535207} is an apocalyptic number.

72858415535207 is a deficient number, since it is larger than the sum of its proper divisors (20622255313).

72858415535207 is a wasteful number, since it uses less digits than its factorization.

72858415535207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20622255312.

The product of its (nonzero) digits is 94080000, while the sum is 62.

The spelling of 72858415535207 in words is "seventy-two trillion, eight hundred fifty-eight billion, four hundred fifteen million, five hundred thirty-five thousand, two hundred seven".