99812669501 has 4 divisors (see below), whose sum is σ = 100530746400. Its totient is φ = 99094592604.

The previous prime is 99812669479. The next prime is 99812669503. The reversal of 99812669501 is 10596621899.

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 99812669501 - 2¹⁴ = 99812653117 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 (99812669503) 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, 359038241 + ... + 359038518.

It is an arithmetic number, because the mean of its divisors is an integer number (25132686600).

Almost surely, 2^99812669501 is an apocalyptic number.

It is an amenable number.

99812669501 is a deficient number, since it is larger than the sum of its proper divisors (718076899).

99812669501 is a wasteful number, since it uses less digits than its factorization.

99812669501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718076898.

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 99812669501 in words is "ninety-nine billion, eight hundred twelve million, six hundred sixty-nine thousand, five hundred one".