99494269657 has 8 divisors (see below), whose sum is σ = 99922111880. Its totient is φ = 99067328640.

The previous prime is 99494269619. The next prime is 99494269669. The reversal of 99494269657 is 75696249499.

It can be written as a sum of positive squares in 4 ways, for example, as 16122904576 + 83371365081 = 126976^2 + 288741^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99494269657 - 2⁷ = 99494269529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99494263657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3558 + ... + 446095.

It is an arithmetic number, because the mean of its divisors is an integer number (12490263985).

Almost surely, 2^99494269657 is an apocalyptic number.

It is an amenable number.

99494269657 is a deficient number, since it is larger than the sum of its proper divisors (427842223).

99494269657 is a wasteful number, since it uses less digits than its factorization.

99494269657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450603.

The product of its digits is 264539520, while the sum is 70.

The spelling of 99494269657 in words is "ninety-nine billion, four hundred ninety-four million, two hundred sixty-nine thousand, six hundred fifty-seven".