94399921231 has 16 divisors (see below), whose sum is σ = 124616551680. Its totient is φ = 69231415680.

The previous prime is 94399921201. The next prime is 94399921249. The reversal of 94399921231 is 13212999349.

It is a happy number.

It is not a de Polignac number, because 94399921231 - 2¹⁹ = 94399396943 is a prime.

It is a super-2 number, since 2×94399921231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94399921201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36056721 + ... + 36059338.

It is an arithmetic number, because the mean of its divisors is an integer number (7788534480).

Almost surely, 2^94399921231 is an apocalyptic number.

94399921231 is a deficient number, since it is larger than the sum of its proper divisors (30216630449).

94399921231 is a wasteful number, since it uses less digits than its factorization.

94399921231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72116094.

The product of its digits is 944784, while the sum is 52.

The spelling of 94399921231 in words is "ninety-four billion, three hundred ninety-nine million, nine hundred twenty-one thousand, two hundred thirty-one".