99749813402 has 8 divisors (see below), whose sum is σ = 154784193300. Its totient is φ = 48155082304.

The previous prime is 99749813399. The next prime is 99749813447. The reversal of 99749813402 is 20431894799.

It can be written as a sum of positive squares in 2 ways, for example, as 95183973361 + 4565840041 = 308519^2 + 67571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859912127 + ... + 859912242.

Almost surely, 2^99749813402 is an apocalyptic number.

99749813402 is a deficient number, since it is larger than the sum of its proper divisors (55034379898).

99749813402 is a wasteful number, since it uses less digits than its factorization.

99749813402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719824400.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 99749813402 in words is "ninety-nine billion, seven hundred forty-nine million, eight hundred thirteen thousand, four hundred two".