7921662002 has 16 divisors (see below), whose sum is σ = 11941098624. Its totient is φ = 3941340000.

The previous prime is 7921661999. The next prime is 7921662017. The reversal of 7921662002 is 2002661297.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363227 + ... + 384417.

It is an arithmetic number, because the mean of its divisors is an integer number (746318664).

Almost surely, 2^7921662002 is an apocalyptic number.

7921662002 is a deficient number, since it is larger than the sum of its proper divisors (4019436622).

7921662002 is a wasteful number, since it uses less digits than its factorization.

7921662002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22105.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 7921662002 is about 89003.7190346561. The cubic root of 7921662002 is about 1993.4504083378.

The spelling of 7921662002 in words is "seven billion, nine hundred twenty-one million, six hundred sixty-two thousand, two".