84462862139 has 2 divisors, whose sum is σ = 84462862140. Its totient is φ = 84462862138.

The previous prime is 84462862117. The next prime is 84462862213. The reversal of 84462862139 is 93126826448.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84462862139 is a prime.

It is not a weakly prime, because it can be changed into another prime (84462862639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42231431069 + 42231431070.

It is an arithmetic number, because the mean of its divisors is an integer number (42231431070).

Almost surely, 2^84462862139 is an apocalyptic number.

84462862139 is a deficient number, since it is larger than the sum of its proper divisors (1).

84462862139 is an equidigital number, since it uses as much as digits as its factorization.

84462862139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 53.

The spelling of 84462862139 in words is "eighty-four billion, four hundred sixty-two million, eight hundred sixty-two thousand, one hundred thirty-nine".