4642661971 has 8 divisors (see below), whose sum is σ = 4916685744. Its totient is φ = 4368741120.

The previous prime is 4642661929. The next prime is 4642661977. The reversal of 4642661971 is 1791662464.

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

It is a cyclic number.

It is not a de Polignac number, because 4642661971 - 2⁷ = 4642661843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4642661977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79471 + ... + 124903.

It is an arithmetic number, because the mean of its divisors is an integer number (614585718).

Almost surely, 2^4642661971 is an apocalyptic number.

4642661971 is a deficient number, since it is larger than the sum of its proper divisors (274023773).

4642661971 is a wasteful number, since it uses less digits than its factorization.

4642661971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51461.

The product of its digits is 435456, while the sum is 46.

The square root of 4642661971 is about 68137.0822019846. The cubic root of 4642661971 is about 1668.2290824875.

The spelling of 4642661971 in words is "four billion, six hundred forty-two million, six hundred sixty-one thousand, nine hundred seventy-one".