31361645364064 has 24 divisors (see below), whose sum is σ = 61813322498088. Its totient is φ = 15663023777280.

The previous prime is 31361645364059. The next prime is 31361645364067. The reversal of 31361645364064 is 46046354616313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31361645364067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556187142 + ... + 556243525.

It is an arithmetic number, because the mean of its divisors is an integer number (2575555104087).

Almost surely, 2^{31361645364064} is an apocalyptic number.

It is an amenable number.

31361645364064 is a deficient number, since it is larger than the sum of its proper divisors (30451677134024).

31361645364064 is a wasteful number, since it uses less digits than its factorization.

31361645364064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112431558 (or 1112431550 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 52.

The spelling of 31361645364064 in words is "thirty-one trillion, three hundred sixty-one billion, six hundred forty-five million, three hundred sixty-four thousand, sixty-four".