88661086687 has 2 divisors, whose sum is σ = 88661086688. Its totient is φ = 88661086686.

The previous prime is 88661086681. The next prime is 88661086721. The reversal of 88661086687 is 78668016688.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88661086687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88661086681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44330543343 + 44330543344.

It is an arithmetic number, because the mean of its divisors is an integer number (44330543344).

Almost surely, 2^88661086687 is an apocalyptic number.

88661086687 is a deficient number, since it is larger than the sum of its proper divisors (1).

88661086687 is an equidigital number, since it uses as much as digits as its factorization.

88661086687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37158912, while the sum is 64.

The spelling of 88661086687 in words is "eighty-eight billion, six hundred sixty-one million, eighty-six thousand, six hundred eighty-seven".