31365032745 has 16 divisors (see below), whose sum is σ = 50191473600. Its totient is φ = 16725543744.

The previous prime is 31365032731. The next prime is 31365032747. The reversal of 31365032745 is 54723056313.

It is not a de Polignac number, because 31365032745 - 2¹⁰ = 31365031721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31365032747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47395 + ... + 254904.

It is an arithmetic number, because the mean of its divisors is an integer number (3136967100).

Almost surely, 2^31365032745 is an apocalyptic number.

It is an amenable number.

31365032745 is a deficient number, since it is larger than the sum of its proper divisors (18826440855).

31365032745 is a wasteful number, since it uses less digits than its factorization.

31365032745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309224.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 31365032745 in words is "thirty-one billion, three hundred sixty-five million, thirty-two thousand, seven hundred forty-five".