31845288254813 has 48 divisors (see below), whose sum is σ = 36504382064640. Its totient is φ = 27725239301760.

The previous prime is 31845288254803. The next prime is 31845288254821.

31845288254813 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31845288254813 - 2⁶ = 31845288254749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31845288254803) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3214418006 + ... + 3214427912.

It is an arithmetic number, because the mean of its divisors is an integer number (760507959680).

Almost surely, 2^{31845288254813} is an apocalyptic number.

It is an amenable number.

31845288254813 is a deficient number, since it is larger than the sum of its proper divisors (4659093809827).

31845288254813 is a wasteful number, since it uses less digits than its factorization.

31845288254813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17298 (or 17287 counting only the distinct ones).

The product of its digits is 58982400, while the sum is 62.

The spelling of 31845288254813 in words is "thirty-one trillion, eight hundred forty-five billion, two hundred eighty-eight million, two hundred fifty-four thousand, eight hundred thirteen".