99739794794 has 4 divisors (see below), whose sum is σ = 149609692194. Its totient is φ = 49869897396.

The previous prime is 99739794757. The next prime is 99739794797. The reversal of 99739794794 is 49749793799.

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

It can be written as a sum of positive squares in only one way, i.e., 90357354025 + 9382440769 = 300595^2 + 96863^2 .

It is a super-3 number, since 3×99739794794³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (99739794797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24934948697 + ... + 24934948700.

Almost surely, 2^99739794794 is an apocalyptic number.

99739794794 is a deficient number, since it is larger than the sum of its proper divisors (49869897400).

99739794794 is a wasteful number, since it uses less digits than its factorization.

99739794794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49869897399.

The product of its digits is 972182736, while the sum is 77.

The spelling of 99739794794 in words is "ninety-nine billion, seven hundred thirty-nine million, seven hundred ninety-four thousand, seven hundred ninety-four".