99183401857 has 4 divisors (see below), whose sum is σ = 99184604116. Its totient is φ = 99182199600.

The previous prime is 99183401851. The next prime is 99183401881. The reversal of 99183401857 is 75810438199.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6769833841 + 92413568016 = 82279^2 + 303996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99183401857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99183401798 and 99183401807.

It is not an unprimeable number, because it can be changed into a prime (99183401851) 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 3 ways as a sum of consecutive naturals, for example, 467478 + ... + 645679.

It is an arithmetic number, because the mean of its divisors is an integer number (24796151029).

Almost surely, 2^99183401857 is an apocalyptic number.

It is an amenable number.

99183401857 is a deficient number, since it is larger than the sum of its proper divisors (1202259).

99183401857 is a wasteful number, since it uses less digits than its factorization.

99183401857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202258.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 99183401857 in words is "ninety-nine billion, one hundred eighty-three million, four hundred one thousand, eight hundred fifty-seven".