4891337238979 has 2 divisors, whose sum is σ = 4891337238980. Its totient is φ = 4891337238978.

The previous prime is 4891337238961. The next prime is 4891337238989. The reversal of 4891337238979 is 9798327331984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4891337238979 - 2¹⁵ = 4891337206211 is a prime.

It is not a weakly prime, because it can be changed into another prime (4891337238989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445668619489 + 2445668619490.

It is an arithmetic number, because the mean of its divisors is an integer number (2445668619490).

Almost surely, 2^{4891337238979} is an apocalyptic number.

4891337238979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891337238979 is an equidigital number, since it uses as much as digits as its factorization.

4891337238979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493807104, while the sum is 73.

The spelling of 4891337238979 in words is "four trillion, eight hundred ninety-one billion, three hundred thirty-seven million, two hundred thirty-eight thousand, nine hundred seventy-nine".