88719983881 has 9 divisors (see below), whose sum is σ = 91893734023. Its totient is φ = 85652334040.

The previous prime is 88719983831. The next prime is 88719983893. The reversal of 88719983881 is 18838991788.

The square root of 88719983881 is 297859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 46522607481 + 42197376400 = 215691^2 + 205420^2 .

It is not a de Polignac number, because 88719983881 - 2⁷ = 88719983753 is a prime.

It is a super-2 number, since 2×88719983881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88719983881.

It is not an unprimeable number, because it can be changed into a prime (88719983831) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8632776 + ... + 8643046.

Almost surely, 2^88719983881 is an apocalyptic number.

88719983881 is the 297859-th square number.

88719983881 is the 148930-th centered octagonal number.

It is an amenable number.

88719983881 is a deficient number, since it is larger than the sum of its proper divisors (3173750142).

88719983881 is an frugal number, since it uses more digits than its factorization.

88719983881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20600 (or 10300 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 70.

The spelling of 88719983881 in words is "eighty-eight billion, seven hundred nineteen million, nine hundred eighty-three thousand, eight hundred eighty-one".