84526519931 has 24 divisors (see below), whose sum is σ = 99704381760. Its totient is φ = 71440693632.

The previous prime is 84526519921. The next prime is 84526519949. The reversal of 84526519931 is 13991562548.

It is a de Polignac number, because none of the positive numbers 2^k-84526519931 is a prime.

It is a super-2 number, since 2×84526519931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84526519921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1574081 + ... + 1626893.

It is an arithmetic number, because the mean of its divisors is an integer number (4154349240).

Almost surely, 2^84526519931 is an apocalyptic number.

84526519931 is a deficient number, since it is larger than the sum of its proper divisors (15177861829).

84526519931 is a wasteful number, since it uses less digits than its factorization.

84526519931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53283 (or 53276 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The spelling of 84526519931 in words is "eighty-four billion, five hundred twenty-six million, five hundred nineteen thousand, nine hundred thirty-one".