89087012639 has 2 divisors, whose sum is σ = 89087012640. Its totient is φ = 89087012638.

The previous prime is 89087012633. The next prime is 89087012683. The reversal of 89087012639 is 93621078098.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89087012639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89087012633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44543506319 + 44543506320.

It is an arithmetic number, because the mean of its divisors is an integer number (44543506320).

Almost surely, 2^89087012639 is an apocalyptic number.

89087012639 is a deficient number, since it is larger than the sum of its proper divisors (1).

89087012639 is an equidigital number, since it uses as much as digits as its factorization.

89087012639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 89087012639 in words is "eighty-nine billion, eighty-seven million, twelve thousand, six hundred thirty-nine".