88479011921 has 8 divisors (see below), whose sum is σ = 91534437288. Its totient is φ = 85466320000.

The previous prime is 88479011909. The next prime is 88479011923. The reversal of 88479011921 is 12911097488.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9455617600 + 79023394321 = 97240^2 + 281111^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 88479011921 - 2¹⁰ = 88479010897 is a prime.

It is a super-2 number, since 2×88479011921² (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 88479011921.

It is not an unprimeable number, because it can be changed into a prime (88479011923) 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, 10679150 + ... + 10687431.

It is an arithmetic number, because the mean of its divisors is an integer number (11441804661).

Almost surely, 2^88479011921 is an apocalyptic number.

It is an amenable number.

88479011921 is a deficient number, since it is larger than the sum of its proper divisors (3055425367).

88479011921 is a wasteful number, since it uses less digits than its factorization.

88479011921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21366723.

The product of its (nonzero) digits is 290304, while the sum is 50.

The spelling of 88479011921 in words is "eighty-eight billion, four hundred seventy-nine million, eleven thousand, nine hundred twenty-one".