99953940617 has 4 divisors (see below), whose sum is σ = 99960653520. Its totient is φ = 99947227716.

The previous prime is 99953940577. The next prime is 99953940629. The reversal of 99953940617 is 71604935999.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71604935999 = 39239 ⋅1824841.

It is a cyclic number.

It is not a de Polignac number, because 99953940617 - 2³⁰ = 98880198793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99953940617.

It is not an unprimeable number, because it can be changed into a prime (99953940917) 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, 3334067 + ... + 3363912.

It is an arithmetic number, because the mean of its divisors is an integer number (24990163380).

Almost surely, 2^99953940617 is an apocalyptic number.

It is an amenable number.

99953940617 is a deficient number, since it is larger than the sum of its proper divisors (6712903).

99953940617 is a wasteful number, since it uses less digits than its factorization.

99953940617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6712902.

The product of its (nonzero) digits is 16533720, while the sum is 62.

The spelling of 99953940617 in words is "ninety-nine billion, nine hundred fifty-three million, nine hundred forty thousand, six hundred seventeen".