84791310431 has 32 divisors (see below), whose sum is σ = 95092024320. Its totient is φ = 75134822400.

The previous prime is 84791310421. The next prime is 84791310467. The reversal of 84791310431 is 13401319748.

It is a cyclic number.

It is not a de Polignac number, because 84791310431 - 2⁶ = 84791310367 is a prime.

It is a super-2 number, since 2×84791310431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84791310421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39235991 + ... + 39238151.

It is an arithmetic number, because the mean of its divisors is an integer number (2971625760).

Almost surely, 2^84791310431 is an apocalyptic number.

84791310431 is a deficient number, since it is larger than the sum of its proper divisors (10300713889).

84791310431 is a wasteful number, since it uses less digits than its factorization.

84791310431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 84791310431 in words is "eighty-four billion, seven hundred ninety-one million, three hundred ten thousand, four hundred thirty-one".