88719988731 has 16 divisors (see below), whose sum is σ = 129053409408. Its totient is φ = 53767126400.

The previous prime is 88719988727. The next prime is 88719988787. The reversal of 88719988731 is 13788991788.

It is a cyclic number.

It is not a de Polignac number, because 88719988731 - 2² = 88719988727 is a prime.

It is a super-2 number, since 2×88719988731² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (88719987731) 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, 820876 + ... + 922646.

It is an arithmetic number, because the mean of its divisors is an integer number (8065838088).

Almost surely, 2^88719988731 is an apocalyptic number.

88719988731 is a deficient number, since it is larger than the sum of its proper divisors (40333420677).

88719988731 is a wasteful number, since it uses less digits than its factorization.

88719988731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128202.

The product of its digits is 48771072, while the sum is 69.

The spelling of 88719988731 in words is "eighty-eight billion, seven hundred nineteen million, nine hundred eighty-eight thousand, seven hundred thirty-one".