7623730644 has 24 divisors (see below), whose sum is σ = 17791525248. Its totient is φ = 2540840640.

The previous prime is 7623730603. The next prime is 7623730649. The reversal of 7623730644 is 4460373267.

It is a junction number, because it is equal to n+sod(n) for n = 7623730596 and 7623730605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7623730649) 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, 34149 + ... + 128115.

It is an arithmetic number, because the mean of its divisors is an integer number (741313552).

Almost surely, 2^7623730644 is an apocalyptic number.

It is an amenable number.

7623730644 is an abundant number, since it is smaller than the sum of its proper divisors (10167794604).

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

7623730644 is a wasteful number, since it uses less digits than its factorization.

7623730644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100735 (or 100733 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 42.

The square root of 7623730644 is about 87313.9773690330. The cubic root of 7623730644 is about 1968.1393654610.

The spelling of 7623730644 in words is "seven billion, six hundred twenty-three million, seven hundred thirty thousand, six hundred forty-four".