5177618491 has 2 divisors, whose sum is σ = 5177618492. Its totient is φ = 5177618490.

The previous prime is 5177618489. The next prime is 5177618507. The reversal of 5177618491 is 1948167715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5177618491 - 2¹ = 5177618489 is a prime.

Together with 5177618489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5177618471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2588809245 + 2588809246.

It is an arithmetic number, because the mean of its divisors is an integer number (2588809246).

Almost surely, 2^5177618491 is an apocalyptic number.

5177618491 is a deficient number, since it is larger than the sum of its proper divisors (1).

5177618491 is an equidigital number, since it uses as much as digits as its factorization.

5177618491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 49.

The square root of 5177618491 is about 71955.6703186066. The cubic root of 5177618491 is about 1729.9890285203.

The spelling of 5177618491 in words is "five billion, one hundred seventy-seven million, six hundred eighteen thousand, four hundred ninety-one".