84511738631 has 8 divisors (see below), whose sum is σ = 90319309200. Its totient is φ = 78797089408.

The previous prime is 84511738583. The next prime is 84511738667. The reversal of 84511738631 is 13683711548.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84511738631 is a prime.

It is a super-2 number, since 2×84511738631² (a number of 23 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 (84511738231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23228456 + ... + 23232093.

It is an arithmetic number, because the mean of its divisors is an integer number (11289913650).

Almost surely, 2^84511738631 is an apocalyptic number.

84511738631 is a deficient number, since it is larger than the sum of its proper divisors (5807570569).

84511738631 is a wasteful number, since it uses less digits than its factorization.

84511738631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46460673.

The product of its digits is 483840, while the sum is 47.

The spelling of 84511738631 in words is "eighty-four billion, five hundred eleven million, seven hundred thirty-eight thousand, six hundred thirty-one".