86612042639 has 2 divisors, whose sum is σ = 86612042640. Its totient is φ = 86612042638.

The previous prime is 86612042617. The next prime is 86612042687. The reversal of 86612042639 is 93624021668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86612042639 - 2¹² = 86612038543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86612042593 and 86612042602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86612042689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43306021319 + 43306021320.

It is an arithmetic number, because the mean of its divisors is an integer number (43306021320).

Almost surely, 2^86612042639 is an apocalyptic number.

86612042639 is a deficient number, since it is larger than the sum of its proper divisors (1).

86612042639 is an equidigital number, since it uses as much as digits as its factorization.

86612042639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 86612042639 in words is "eighty-six billion, six hundred twelve million, forty-two thousand, six hundred thirty-nine".