84402311791 has 6 divisors (see below), whose sum is σ = 98182281120. Its totient is φ = 72344838636.

The previous prime is 84402311771. The next prime is 84402311801. The reversal of 84402311791 is 19711320448.

It is not a de Polignac number, because 84402311791 - 2¹³ = 84402303599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84402311761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 861248031 + ... + 861248128.

It is an arithmetic number, because the mean of its divisors is an integer number (16363713520).

Almost surely, 2^84402311791 is an apocalyptic number.

84402311791 is a deficient number, since it is larger than the sum of its proper divisors (13779969329).

84402311791 is a wasteful number, since it uses less digits than its factorization.

84402311791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722496173 (or 1722496166 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 84402311791 in words is "eighty-four billion, four hundred two million, three hundred eleven thousand, seven hundred ninety-one".