98631918423 has 12 divisors (see below), whose sum is σ = 143851515600. Its totient is φ = 65116217376.

The previous prime is 98631918391. The next prime is 98631918487. The reversal of 98631918423 is 32481913689.

It is not a de Polignac number, because 98631918423 - 2⁵ = 98631918391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98631918423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98631918493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53198598 + ... + 53200451.

It is an arithmetic number, because the mean of its divisors is an integer number (11987626300).

Almost surely, 2^98631918423 is an apocalyptic number.

98631918423 is a deficient number, since it is larger than the sum of its proper divisors (45219597177).

98631918423 is a wasteful number, since it uses less digits than its factorization.

98631918423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106399158 (or 106399155 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 98631918423 in words is "ninety-eight billion, six hundred thirty-one million, nine hundred eighteen thousand, four hundred twenty-three".