99174606389 has 2 divisors, whose sum is σ = 99174606390. Its totient is φ = 99174606388.

The previous prime is 99174606383. The next prime is 99174606449. The reversal of 99174606389 is 98360647199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60339992164 + 38834614225 = 245642^2 + 197065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99174606389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99174606383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49587303194 + 49587303195.

It is an arithmetic number, because the mean of its divisors is an integer number (49587303195).

Almost surely, 2^99174606389 is an apocalyptic number.

It is an amenable number.

99174606389 is a deficient number, since it is larger than the sum of its proper divisors (1).

99174606389 is an equidigital number, since it uses as much as digits as its factorization.

99174606389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 99174606389 in words is "ninety-nine billion, one hundred seventy-four million, six hundred six thousand, three hundred eighty-nine".