87266141631 has 12 divisors (see below), whose sum is σ = 126461687352. Its totient is φ = 57987922896.

The previous prime is 87266141609. The next prime is 87266141741. The reversal of 87266141631 is 13614166278.

87266141631 is a `hidden beast` number, since 8 + 7 + 2 + 6 + 6 + 1 + 4 + 1 + 631 = 666.

It is not a de Polignac number, because 87266141631 - 2¹⁰ = 87266140607 is a prime.

It is a super-2 number, since 2×87266141631² (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 (87266141231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15789156 + ... + 15794681.

It is an arithmetic number, because the mean of its divisors is an integer number (10538473946).

Almost surely, 2^87266141631 is an apocalyptic number.

87266141631 is a deficient number, since it is larger than the sum of its proper divisors (39195545721).

87266141631 is a wasteful number, since it uses less digits than its factorization.

87266141631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31584150 (or 31584147 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 87266141631 in words is "eighty-seven billion, two hundred sixty-six million, one hundred forty-one thousand, six hundred thirty-one".