31846465939 has 4 divisors (see below), whose sum is σ = 31959798840. Its totient is φ = 31733133040.

The previous prime is 31846465921. The next prime is 31846465949. The reversal of 31846465939 is 93956464813.

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 31846465939 - 2⁷ = 31846465811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31846465949) 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, 56666029 + ... + 56666590.

It is an arithmetic number, because the mean of its divisors is an integer number (7989949710).

Almost surely, 2^31846465939 is an apocalyptic number.

31846465939 is a deficient number, since it is larger than the sum of its proper divisors (113332901).

31846465939 is a wasteful number, since it uses less digits than its factorization.

31846465939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113332900.

The product of its digits is 16796160, while the sum is 58.

The spelling of 31846465939 in words is "thirty-one billion, eight hundred forty-six million, four hundred sixty-five thousand, nine hundred thirty-nine".