5312943289640 has 32 divisors (see below), whose sum is σ = 13661854174080. Its totient is φ = 1821580556352.

The previous prime is 5312943289631. The next prime is 5312943289649. The reversal of 5312943289640 is 469823492135.

It is an interprime number because it is at equal distance from previous prime (5312943289631) and next prime (5312943289649).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (5312943289649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9487398452 + ... + 9487399011.

It is an arithmetic number, because the mean of its divisors is an integer number (426932942940).

Almost surely, 2^{5312943289640} is an apocalyptic number.

It is an amenable number.

5312943289640 is an abundant number, since it is smaller than the sum of its proper divisors (8348910884440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5312943289640 is a wasteful number, since it uses less digits than its factorization.

5312943289640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18974797481 (or 18974797477 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 5312943289640 in words is "five trillion, three hundred twelve billion, nine hundred forty-three million, two hundred eighty-nine thousand, six hundred forty".