72911698974583 has 4 divisors (see below), whose sum is σ = 83327655970960. Its totient is φ = 62495741978208.

The previous prime is 72911698974523. The next prime is 72911698974613. The reversal of 72911698974583 is 38547989611927.

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

It is not a de Polignac number, because 72911698974583 - 2¹³ = 72911698966391 is a prime.

It is a super-2 number, since 2×72911698974583² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72911698974523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5207978498178 + ... + 5207978498191.

It is an arithmetic number, because the mean of its divisors is an integer number (20831913992740).

Almost surely, 2^{72911698974583} is an apocalyptic number.

72911698974583 is a deficient number, since it is larger than the sum of its proper divisors (10415956996377).

72911698974583 is a wasteful number, since it uses less digits than its factorization.

72911698974583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10415956996376.

The product of its digits is 1646023680, while the sum is 79.

The spelling of 72911698974583 in words is "seventy-two trillion, nine hundred eleven billion, six hundred ninety-eight million, nine hundred seventy-four thousand, five hundred eighty-three".