31948614319 has 4 divisors (see below), whose sum is σ = 31975898680. Its totient is φ = 31921329960.

The previous prime is 31948614287. The next prime is 31948614343. The reversal of 31948614319 is 91341684913.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31948614319 - 2⁵ = 31948614287 is a prime.

It is a super-2 number, since 2×31948614319² (a number of 22 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 (31948614389) 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, 13640424 + ... + 13642765.

It is an arithmetic number, because the mean of its divisors is an integer number (7993974670).

Almost surely, 2^31948614319 is an apocalyptic number.

31948614319 is a deficient number, since it is larger than the sum of its proper divisors (27284361).

31948614319 is a wasteful number, since it uses less digits than its factorization.

31948614319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27284360.

The product of its digits is 559872, while the sum is 49.

The spelling of 31948614319 in words is "thirty-one billion, nine hundred forty-eight million, six hundred fourteen thousand, three hundred nineteen".