88631312481 has 16 divisors (see below), whose sum is σ = 131313251520. Its totient is φ = 59084120160.

The previous prime is 88631312479. The next prime is 88631312491. The reversal of 88631312481 is 18421313688.

88631312481 is a `hidden beast` number, since 8 + 8 + 631 + 3 + 1 + 2 + 4 + 8 + 1 = 666.

It is not a de Polignac number, because 88631312481 - 2¹ = 88631312479 is a prime.

It is a super-2 number, since 2×88631312481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88631312401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433261 + ... + 604133.

It is an arithmetic number, because the mean of its divisors is an integer number (8207078220).

Almost surely, 2^88631312481 is an apocalyptic number.

It is an amenable number.

88631312481 is a deficient number, since it is larger than the sum of its proper divisors (42681939039).

88631312481 is a wasteful number, since it uses less digits than its factorization.

88631312481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190093 (or 190087 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The spelling of 88631312481 in words is "eighty-eight billion, six hundred thirty-one million, three hundred twelve thousand, four hundred eighty-one".