99374798401 has 4 divisors (see below), whose sum is σ = 99413125252. Its totient is φ = 99336471552.

The previous prime is 99374798381. The next prime is 99374798437. The reversal of 99374798401 is 10489747399.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40743018801 + 58631779600 = 201849^2 + 242140^2 .

It is a cyclic number.

It is not a de Polignac number, because 99374798401 - 2¹³ = 99374790209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99374798401.

It is not an unprimeable number, because it can be changed into a prime (99374798101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19159536 + ... + 19164721.

It is an arithmetic number, because the mean of its divisors is an integer number (24853281313).

Almost surely, 2^99374798401 is an apocalyptic number.

It is an amenable number.

99374798401 is a deficient number, since it is larger than the sum of its proper divisors (38326851).

99374798401 is a wasteful number, since it uses less digits than its factorization.

99374798401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38326850.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 99374798401 in words is "ninety-nine billion, three hundred seventy-four million, seven hundred ninety-eight thousand, four hundred one".