7622666544 has 80 divisors (see below), whose sum is σ = 20743116800. Its totient is φ = 2405438208.

The previous prime is 7622666537. The next prime is 7622666561. The reversal of 7622666544 is 4456662267.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 7622666493 and 7622666502.

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, 2040102 + ... + 2043834.

It is an arithmetic number, because the mean of its divisors is an integer number (259288960).

Almost surely, 2^7622666544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7622666544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10371558400).

7622666544 is an abundant number, since it is smaller than the sum of its proper divisors (13120450256).

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

7622666544 is a wasteful number, since it uses less digits than its factorization.

7622666544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6002 (or 5996 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 48.

The square root of 7622666544 is about 87307.8836302885. The cubic root of 7622666544 is about 1968.0477919850.

The spelling of 7622666544 in words is "seven billion, six hundred twenty-two million, six hundred sixty-six thousand, five hundred forty-four".