862345490591 has 12 divisors (see below), whose sum is σ = 934410631392. Its totient is φ = 795475676736.

The previous prime is 862345490561. The next prime is 862345490717. The reversal of 862345490591 is 195094543268.

It is not a de Polignac number, because 862345490591 - 2¹⁸ = 862345228447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862345490521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1464446 + ... + 1967051.

It is an arithmetic number, because the mean of its divisors is an integer number (77867552616).

Almost surely, 2^862345490591 is an apocalyptic number.

862345490591 is a deficient number, since it is larger than the sum of its proper divisors (72065140801).

862345490591 is a wasteful number, since it uses less digits than its factorization.

862345490591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433010 (or 3432997 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 862345490591 in words is "eight hundred sixty-two billion, three hundred forty-five million, four hundred ninety thousand, five hundred ninety-one".