99173628413 has 4 divisors (see below), whose sum is σ = 100155545628. Its totient is φ = 98191711200.

The previous prime is 99173628373. The next prime is 99173628451. The reversal of 99173628413 is 31482637199.

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 56893221529 + 42280406884 = 238523^2 + 205622^2 .

It is a cyclic number.

It is not a de Polignac number, because 99173628413 - 2⁸ = 99173628157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99170628413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490958456 + ... + 490958657.

It is an arithmetic number, because the mean of its divisors is an integer number (25038886407).

Almost surely, 2^99173628413 is an apocalyptic number.

It is an amenable number.

99173628413 is a deficient number, since it is larger than the sum of its proper divisors (981917215).

99173628413 is a wasteful number, since it uses less digits than its factorization.

99173628413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981917214.

The product of its digits is 1959552, while the sum is 53.

The spelling of 99173628413 in words is "ninety-nine billion, one hundred seventy-three million, six hundred twenty-eight thousand, four hundred thirteen".