5215970644 has 24 divisors (see below), whose sum is σ = 9182371968. Its totient is φ = 2592479520.

The previous prime is 5215970629. The next prime is 5215970647. The reversal of 5215970644 is 4460795125.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5215970644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215970647) 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, 507234 + ... + 517414.

It is an arithmetic number, because the mean of its divisors is an integer number (382598832).

Almost surely, 2^5215970644 is an apocalyptic number.

It is an amenable number.

5215970644 is a deficient number, since it is larger than the sum of its proper divisors (3966401324).

5215970644 is a wasteful number, since it uses less digits than its factorization.

5215970644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10935 (or 10933 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 5215970644 is about 72221.6771059770. The cubic root of 5215970644 is about 1734.2500385531.

The spelling of 5215970644 in words is "five billion, two hundred fifteen million, nine hundred seventy thousand, six hundred forty-four".