31361185605485 has 16 divisors (see below), whose sum is σ = 37835955792000. Its totient is φ = 24954015911616.

The previous prime is 31361185605437. The next prime is 31361185605493. The reversal of 31361185605485 is 58450658116313.

It is a cyclic number.

It is not a de Polignac number, because 31361185605485 - 2³⁸ = 31086307698541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31361185605485.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2785514 + ... + 8395323.

It is an arithmetic number, because the mean of its divisors is an integer number (2364747237000).

Almost surely, 2^{31361185605485} is an apocalyptic number.

It is an amenable number.

31361185605485 is a deficient number, since it is larger than the sum of its proper divisors (6474770186515).

31361185605485 is a wasteful number, since it uses less digits than its factorization.

31361185605485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183860.

The product of its (nonzero) digits is 10368000, while the sum is 56.

The spelling of 31361185605485 in words is "thirty-one trillion, three hundred sixty-one billion, one hundred eighty-five million, six hundred five thousand, four hundred eighty-five".