99973697907 has 8 divisors (see below), whose sum is σ = 137598208000. Its totient is φ = 64499159880.

The previous prime is 99973697881. The next prime is 99973697933. The reversal of 99973697907 is 70979637999.

It is an interprime number because it is at equal distance from previous prime (99973697881) and next prime (99973697933).

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

It is not a de Polignac number, because 99973697907 - 2⁶ = 99973697843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99973697987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537492907 + ... + 537493092.

It is an arithmetic number, because the mean of its divisors is an integer number (17199776000).

Almost surely, 2^99973697907 is an apocalyptic number.

99973697907 is a deficient number, since it is larger than the sum of its proper divisors (37624510093).

99973697907 is a wasteful number, since it uses less digits than its factorization.

99973697907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074986033.

The product of its (nonzero) digits is 364568526, while the sum is 75.

The spelling of 99973697907 in words is "ninety-nine billion, nine hundred seventy-three million, six hundred ninety-seven thousand, nine hundred seven".