99327981251 has 8 divisors (see below), whose sum is σ = 99575021760. Its totient is φ = 99081081792.

The previous prime is 99327981211. The next prime is 99327981281. The reversal of 99327981251 is 15218972399.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99327981251 - 2¹⁸ = 99327719107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99327981211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1452341 + ... + 1519193.

It is an arithmetic number, because the mean of its divisors is an integer number (12446877720).

Almost surely, 2^99327981251 is an apocalyptic number.

99327981251 is a deficient number, since it is larger than the sum of its proper divisors (247040509).

99327981251 is a wasteful number, since it uses less digits than its factorization.

99327981251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70525.

The product of its digits is 2449440, while the sum is 56.

The spelling of 99327981251 in words is "ninety-nine billion, three hundred twenty-seven million, nine hundred eighty-one thousand, two hundred fifty-one".