4921667864 has 16 divisors (see below), whose sum is σ = 9240831600. Its totient is φ = 2457446112.

The previous prime is 4921667833. The next prime is 4921667893. The reversal of 4921667864 is 4687661294.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 417299 + ... + 428930.

It is an arithmetic number, because the mean of its divisors is an integer number (577551975).

Almost surely, 2^4921667864 is an apocalyptic number.

It is an amenable number.

4921667864 is a deficient number, since it is larger than the sum of its proper divisors (4319163736).

4921667864 is a wasteful number, since it uses less digits than its factorization.

4921667864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846962 (or 846958 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 4921667864 is about 70154.5997351564. The cubic root of 4921667864 is about 1700.9991662633. Note that the first 3 decimals are identical.

The spelling of 4921667864 in words is "four billion, nine hundred twenty-one million, six hundred sixty-seven thousand, eight hundred sixty-four".