4651993690 has 8 divisors (see below), whose sum is σ = 8373588660. Its totient is φ = 1860797472.

The previous prime is 4651993667. The next prime is 4651993721. The reversal of 4651993690 is 963991564.

It can be written as a sum of positive squares in 2 ways, for example, as 3959303929 + 692689761 = 62923^2 + 26319^2 .

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

It is a super-2 number, since 2×4651993690² = 43282090583599632200, which contains 22 as substring.

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, 232599675 + ... + 232599694.

Almost surely, 2^4651993690 is an apocalyptic number.

4651993690 is a deficient number, since it is larger than the sum of its proper divisors (3721594970).

4651993690 is a wasteful number, since it uses less digits than its factorization.

4651993690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465199376.

The product of its (nonzero) digits is 1574640, while the sum is 52.

The square root of 4651993690 is about 68205.5253626860. The cubic root of 4651993690 is about 1669.3460441646.

The spelling of 4651993690 in words is "four billion, six hundred fifty-one million, nine hundred ninety-three thousand, six hundred ninety".