31645634037 has 8 divisors (see below), whose sum is σ = 42202751904. Its totient is φ = 21092802768.

The previous prime is 31645633951. The next prime is 31645634071. The reversal of 31645634037 is 73043654613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31645634037 - 2⁸ = 31645633781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31645634037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31645634077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1054383 + ... + 1083980.

It is an arithmetic number, because the mean of its divisors is an integer number (5275343988).

Almost surely, 2^31645634037 is an apocalyptic number.

It is an amenable number.

31645634037 is a deficient number, since it is larger than the sum of its proper divisors (10557117867).

31645634037 is a wasteful number, since it uses less digits than its factorization.

31645634037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143299.

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 31645634037 in words is "thirty-one billion, six hundred forty-five million, six hundred thirty-four thousand, thirty-seven".