31313045654636 has 6 divisors (see below), whose sum is σ = 54797829895620. Its totient is φ = 15656522827316.

The previous prime is 31313045654599. The next prime is 31313045654641. The reversal of 31313045654636 is 63645654031313.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914130706826 + ... + 3914130706833.

It is an arithmetic number, because the mean of its divisors is an integer number (9132971649270).

Almost surely, 2^{31313045654636} is an apocalyptic number.

It is an amenable number.

31313045654636 is a deficient number, since it is larger than the sum of its proper divisors (23484784240984).

31313045654636 is a wasteful number, since it uses less digits than its factorization.

31313045654636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828261413663 (or 7828261413661 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 50.

Adding to 31313045654636 its reverse (63645654031313), we get a palindrome (94958699685949).

The spelling of 31313045654636 in words is "thirty-one trillion, three hundred thirteen billion, forty-five million, six hundred fifty-four thousand, six hundred thirty-six".