88880891513 has 2 divisors, whose sum is σ = 88880891514. Its totient is φ = 88880891512.

The previous prime is 88880891471. The next prime is 88880891537. The reversal of 88880891513 is 31519808888.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65973463609 + 22907427904 = 256853^2 + 151352^2 .

It is a cyclic number.

It is not a de Polignac number, because 88880891513 - 2²² = 88876697209 is a prime.

It is a super-2 number, since 2×88880891513² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88880891573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44440445756 + 44440445757.

It is an arithmetic number, because the mean of its divisors is an integer number (44440445757).

Almost surely, 2^88880891513 is an apocalyptic number.

It is an amenable number.

88880891513 is a deficient number, since it is larger than the sum of its proper divisors (1).

88880891513 is an equidigital number, since it uses as much as digits as its factorization.

88880891513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4423680, while the sum is 59.

The spelling of 88880891513 in words is "eighty-eight billion, eight hundred eighty million, eight hundred ninety-one thousand, five hundred thirteen".