88649163531 has 64 divisors (see below), whose sum is σ = 141237043200. Its totient is φ = 54782687232.

The previous prime is 88649163527. The next prime is 88649163539. The reversal of 88649163531 is 13536194688.

88649163531 is a `hidden beast` number, since 8 + 8 + 6 + 49 + 1 + 63 + 531 = 666.

It is not a de Polignac number, because 88649163531 - 2² = 88649163527 is a prime.

It is a super-2 number, since 2×88649163531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88649163539) 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 63 ways as a sum of consecutive naturals, for example, 10409131 + ... + 10417643.

It is an arithmetic number, because the mean of its divisors is an integer number (2206828800).

Almost surely, 2^88649163531 is an apocalyptic number.

88649163531 is a deficient number, since it is larger than the sum of its proper divisors (52587879669).

88649163531 is a wasteful number, since it uses less digits than its factorization.

88649163531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8977 (or 8971 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 88649163531 in words is "eighty-eight billion, six hundred forty-nine million, one hundred sixty-three thousand, five hundred thirty-one".