7921451662 has 8 divisors (see below), whose sum is σ = 11903284296. Its totient is φ = 3953690232.

The previous prime is 7921451653. The next prime is 7921451711. The reversal of 7921451662 is 2661541297.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3516393 + ... + 3518644.

It is an arithmetic number, because the mean of its divisors is an integer number (1487910537).

Almost surely, 2^7921451662 is an apocalyptic number.

7921451662 is a deficient number, since it is larger than the sum of its proper divisors (3981832634).

7921451662 is a wasteful number, since it uses less digits than its factorization.

7921451662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7035602.

The product of its digits is 181440, while the sum is 43.

The square root of 7921451662 is about 89002.5373907958. The cubic root of 7921451662 is about 1993.4327644784.

The spelling of 7921451662 in words is "seven billion, nine hundred twenty-one million, four hundred fifty-one thousand, six hundred sixty-two".