4691493643 has 2 divisors, whose sum is σ = 4691493644. Its totient is φ = 4691493642.

The previous prime is 4691493617. The next prime is 4691493683. The reversal of 4691493643 is 3463941964.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4691493643 is a prime.

It is a super-2 number, since 2×4691493643² = 44020225204618822898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4691493613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2345746821 + 2345746822.

It is an arithmetic number, because the mean of its divisors is an integer number (2345746822).

Almost surely, 2^4691493643 is an apocalyptic number.

4691493643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4691493643 is an equidigital number, since it uses as much as digits as its factorization.

4691493643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 49.

The square root of 4691493643 is about 68494.4789234870. The cubic root of 4691493643 is about 1674.0575249525.

The spelling of 4691493643 in words is "four billion, six hundred ninety-one million, four hundred ninety-three thousand, six hundred forty-three".