99913202861 has 4 divisors (see below), whose sum is σ = 100004783424. Its totient is φ = 99821622300.

The previous prime is 99913202797. The next prime is 99913202897. The reversal of 99913202861 is 16820231999.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 99913202861 - 2⁶ = 99913202797 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 (99913207861) 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, 45788645 + ... + 45790826.

It is an arithmetic number, because the mean of its divisors is an integer number (25001195856).

Almost surely, 2^99913202861 is an apocalyptic number.

It is an amenable number.

99913202861 is a deficient number, since it is larger than the sum of its proper divisors (91580563).

99913202861 is a wasteful number, since it uses less digits than its factorization.

99913202861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91580562.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 99913202861 in words is "ninety-nine billion, nine hundred thirteen million, two hundred two thousand, eight hundred sixty-one".