99641704574 has 4 divisors (see below), whose sum is σ = 149462556864. Its totient is φ = 49820852286.

The previous prime is 99641704573. The next prime is 99641704691. The reversal of 99641704574 is 47540714699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47540714699 = 42899 ⋅1108201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99641704573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24910426142 + ... + 24910426145.

It is an arithmetic number, because the mean of its divisors is an integer number (37365639216).

Almost surely, 2^99641704574 is an apocalyptic number.

99641704574 is a deficient number, since it is larger than the sum of its proper divisors (49820852290).

99641704574 is a wasteful number, since it uses less digits than its factorization.

99641704574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49820852289.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 99641704574 in words is "ninety-nine billion, six hundred forty-one million, seven hundred four thousand, five hundred seventy-four".