31040742553631 has 8 divisors (see below), whose sum is σ = 31249503203328. Its totient is φ = 30832023915000.

The previous prime is 31040742553507. The next prime is 31040742553633. The reversal of 31040742553631 is 13635524704013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31040742553631 is a prime.

It is a super-2 number, since 2×31040742553631² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31040742553633) 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, 9019355 + ... + 11976236.

It is an arithmetic number, because the mean of its divisors is an integer number (3906187900416).

Almost surely, 2^{31040742553631} is an apocalyptic number.

31040742553631 is a deficient number, since it is larger than the sum of its proper divisors (208760649697).

31040742553631 is a wasteful number, since it uses less digits than its factorization.

31040742553631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21005533.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 31040742553631 in words is "thirty-one trillion, forty billion, seven hundred forty-two million, five hundred fifty-three thousand, six hundred thirty-one".