4993208491 has 2 divisors, whose sum is σ = 4993208492. Its totient is φ = 4993208490.

The previous prime is 4993208489. The next prime is 4993208543. The reversal of 4993208491 is 1948023994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4993208491 - 2¹ = 4993208489 is a prime.

Together with 4993208489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4993208791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496604245 + 2496604246.

It is an arithmetic number, because the mean of its divisors is an integer number (2496604246).

Almost surely, 2^4993208491 is an apocalyptic number.

4993208491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993208491 is an equidigital number, since it uses as much as digits as its factorization.

4993208491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 4993208491 is about 70662.6385793794. The cubic root of 4993208491 is about 1709.2013747345.

The spelling of 4993208491 in words is "four billion, nine hundred ninety-three million, two hundred eight thousand, four hundred ninety-one".