99679207425 has 48 divisors (see below), whose sum is σ = 198259215360. Its totient is φ = 43169336640.

The previous prime is 99679207417. The next prime is 99679207427. The reversal of 99679207425 is 52470297699.

It is not a de Polignac number, because 99679207425 - 2³ = 99679207417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99679207427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4986477 + ... + 5006426.

It is an arithmetic number, because the mean of its divisors is an integer number (4130400320).

It is a Proth number, since it is equal to 190123 ⋅ 2¹⁹ + 1 and 190123 < 2¹⁹.

Almost surely, 2^99679207425 is an apocalyptic number.

99679207425 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

99679207425 is a deficient number, since it is larger than the sum of its proper divisors (98580007935).

99679207425 is a wasteful number, since it uses less digits than its factorization.

99679207425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992942 (or 9992937 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 60.

The spelling of 99679207425 in words is "ninety-nine billion, six hundred seventy-nine million, two hundred seven thousand, four hundred twenty-five".