99947274999 has 32 divisors (see below), whose sum is σ = 156744881664. Its totient is φ = 55848804480.

The previous prime is 99947274983. The next prime is 99947275003.

99947274999 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99947274999 - 2⁴ = 99947274983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99947274919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229374 + ... + 502500.

It is an arithmetic number, because the mean of its divisors is an integer number (4898277552).

Almost surely, 2^99947274999 is an apocalyptic number.

99947274999 is a deficient number, since it is larger than the sum of its proper divisors (56797606665).

99947274999 is a wasteful number, since it uses less digits than its factorization.

99947274999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274007.

The product of its digits is 833299488, while the sum is 78.

The spelling of 99947274999 in words is "ninety-nine billion, nine hundred forty-seven million, two hundred seventy-four thousand, nine hundred ninety-nine".