7621728922 has 8 divisors (see below), whose sum is σ = 11452071456. Its totient is φ = 3804371772.

The previous prime is 7621728893. The next prime is 7621728929. The reversal of 7621728922 is 2298271267.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (7621728929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3244878 + ... + 3247225.

It is an arithmetic number, because the mean of its divisors is an integer number (1431508932).

Almost surely, 2^7621728922 is an apocalyptic number.

7621728922 is a deficient number, since it is larger than the sum of its proper divisors (3830342534).

7621728922 is a wasteful number, since it uses less digits than its factorization.

7621728922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492692.

The product of its digits is 338688, while the sum is 46.

The square root of 7621728922 is about 87302.5138355134. The cubic root of 7621728922 is about 1967.9670957894.

The spelling of 7621728922 in words is "seven billion, six hundred twenty-one million, seven hundred twenty-eight thousand, nine hundred twenty-two".