88380226991 has 8 divisors (see below), whose sum is σ = 102717939840. Its totient is φ = 74470505688.

The previous prime is 88380226981. The next prime is 88380226999. The reversal of 88380226991 is 19962208388.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88380226991 is a prime.

It is a super-2 number, since 2×88380226991² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88380226999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106997441 + ... + 106998266.

It is an arithmetic number, because the mean of its divisors is an integer number (12839742480).

Almost surely, 2^88380226991 is an apocalyptic number.

88380226991 is a deficient number, since it is larger than the sum of its proper divisors (14337712849).

88380226991 is a wasteful number, since it uses less digits than its factorization.

88380226991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213995773.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 88380226991 in words is "eighty-eight billion, three hundred eighty million, two hundred twenty-six thousand, nine hundred ninety-one".