99668870457 has 8 divisors (see below), whose sum is σ = 143114275584. Its totient is φ = 61334689488.

The previous prime is 99668870453. The next prime is 99668870459. The reversal of 99668870457 is 75407886699.

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

It is not a de Polignac number, because 99668870457 - 2² = 99668870453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99668870391 and 99668870400.

It is not an unprimeable number, because it can be changed into a prime (99668870453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277805993 + ... + 1277806070.

It is an arithmetic number, because the mean of its divisors is an integer number (17889284448).

Almost surely, 2^99668870457 is an apocalyptic number.

It is an amenable number.

99668870457 is a deficient number, since it is larger than the sum of its proper divisors (43445405127).

99668870457 is a wasteful number, since it uses less digits than its factorization.

99668870457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555612079.

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 99668870457 in words is "ninety-nine billion, six hundred sixty-eight million, eight hundred seventy thousand, four hundred fifty-seven".