87933194631 has 12 divisors (see below), whose sum is σ = 127231001352. Its totient is φ = 58522258896.

The previous prime is 87933194597. The next prime is 87933194653. The reversal of 87933194631 is 13649133978.

It is a happy number.

87933194631 is a `hidden beast` number, since 87 + 93 + 3 + 19 + 463 + 1 = 666.

It is not a de Polignac number, because 87933194631 - 2¹⁵ = 87933161863 is a prime.

It is a super-2 number, since 2×87933194631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87933194231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8316996 + ... + 8327561.

It is an arithmetic number, because the mean of its divisors is an integer number (10602583446).

Almost surely, 2^87933194631 is an apocalyptic number.

87933194631 is a deficient number, since it is larger than the sum of its proper divisors (39297806721).

87933194631 is a wasteful number, since it uses less digits than its factorization.

87933194631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16645150 (or 16645147 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 87933194631 in words is "eighty-seven billion, nine hundred thirty-three million, one hundred ninety-four thousand, six hundred thirty-one".