31798392341 has 4 divisors (see below), whose sum is σ = 31805873292. Its totient is φ = 31790911392.

The previous prime is 31798392337. The next prime is 31798392391. The reversal of 31798392341 is 14329389713.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1364194225 + 30434198116 = 36935^2 + 174454^2 .

It is a cyclic number.

It is not a de Polignac number, because 31798392341 - 2² = 31798392337 is a prime.

It is a super-2 number, since 2×31798392341² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31798392341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31798392391) 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, 3734096 + ... + 3742601.

It is an arithmetic number, because the mean of its divisors is an integer number (7951468323).

Almost surely, 2^31798392341 is an apocalyptic number.

It is an amenable number.

31798392341 is a deficient number, since it is larger than the sum of its proper divisors (7480951).

31798392341 is an equidigital number, since it uses as much as digits as its factorization.

31798392341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7480950.

The product of its digits is 979776, while the sum is 50.

The spelling of 31798392341 in words is "thirty-one billion, seven hundred ninety-eight million, three hundred ninety-two thousand, three hundred forty-one".