31977223199 has 8 divisors (see below), whose sum is σ = 33019628160. Its totient is φ = 30935498400.

The previous prime is 31977223181. The next prime is 31977223237. The reversal of 31977223199 is 99132277913.

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 31977223199 - 2¹² = 31977219103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31977223199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31977223139) 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 7 ways as a sum of consecutive naturals, for example, 73604 + ... + 263385.

It is an arithmetic number, because the mean of its divisors is an integer number (4127453520).

Almost surely, 2^31977223199 is an apocalyptic number.

31977223199 is a deficient number, since it is larger than the sum of its proper divisors (1042404961).

31977223199 is a wasteful number, since it uses less digits than its factorization.

31977223199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340081.

The product of its digits is 1285956, while the sum is 53.

The spelling of 31977223199 in words is "thirty-one billion, nine hundred seventy-seven million, two hundred twenty-three thousand, one hundred ninety-nine".