49187617117 has 2 divisors, whose sum is σ = 49187617118. Its totient is φ = 49187617116.

The previous prime is 49187617093. The next prime is 49187617123. The reversal of 49187617117 is 71171678194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49180158756 + 7458361 = 221766^2 + 2731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49187617117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49187617517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24593808558 + 24593808559.

It is an arithmetic number, because the mean of its divisors is an integer number (24593808559).

Almost surely, 2^49187617117 is an apocalyptic number.

It is an amenable number.

49187617117 is a deficient number, since it is larger than the sum of its proper divisors (1).

49187617117 is an equidigital number, since it uses as much as digits as its factorization.

49187617117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 52.

The spelling of 49187617117 in words is "forty-nine billion, one hundred eighty-seven million, six hundred seventeen thousand, one hundred seventeen".