7983022644 has 36 divisors (see below), whose sum is σ = 20205019744. Its totient is φ = 2657616912.

The previous prime is 7983022631. The next prime is 7983022661. The reversal of 7983022644 is 4462203897.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 7983022644.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 112552 + ... + 169215.

Almost surely, 2^7983022644 is an apocalyptic number.

It is an amenable number.

7983022644 is an abundant number, since it is smaller than the sum of its proper divisors (12221997100).

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

7983022644 is a wasteful number, since it uses less digits than its factorization.

7983022644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282564 (or 282559 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 7983022644 is about 89347.7623894410. The cubic root of 7983022644 is about 1998.5842183510.

The spelling of 7983022644 in words is "seven billion, nine hundred eighty-three million, twenty-two thousand, six hundred forty-four".