7998922671 has 8 divisors (see below), whose sum is σ = 11292596784. Its totient is φ = 5018931840.

The previous prime is 7998922649. The next prime is 7998922697. The reversal of 7998922671 is 1762298997.

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

It is not a de Polignac number, because 7998922671 - 2⁵ = 7998922639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998922571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78420760 + ... + 78420861.

It is an arithmetic number, because the mean of its divisors is an integer number (1411574598).

Almost surely, 2^7998922671 is an apocalyptic number.

7998922671 is a deficient number, since it is larger than the sum of its proper divisors (3293674113).

7998922671 is a wasteful number, since it uses less digits than its factorization.

7998922671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156841641.

The product of its digits is 6858432, while the sum is 60.

The square root of 7998922671 is about 89436.6964450275. The cubic root of 7998922671 is about 1999.9102185530.

The spelling of 7998922671 in words is "seven billion, nine hundred ninety-eight million, nine hundred twenty-two thousand, six hundred seventy-one".