88587791081 has 2 divisors, whose sum is σ = 88587791082. Its totient is φ = 88587791080.

The previous prime is 88587791069. The next prime is 88587791087. The reversal of 88587791081 is 18019778588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86227386025 + 2360405056 = 293645^2 + 48584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88587791081 is a prime.

It is a super-2 number, since 2×88587791081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88587791087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44293895540 + 44293895541.

It is an arithmetic number, because the mean of its divisors is an integer number (44293895541).

Almost surely, 2^88587791081 is an apocalyptic number.

It is an amenable number.

88587791081 is a deficient number, since it is larger than the sum of its proper divisors (1).

88587791081 is an equidigital number, since it uses as much as digits as its factorization.

88587791081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 62.

The spelling of 88587791081 in words is "eighty-eight billion, five hundred eighty-seven million, seven hundred ninety-one thousand, eighty-one".