117756749777 has 2 divisors, whose sum is σ = 117756749778. Its totient is φ = 117756749776.

The previous prime is 117756749771. The next prime is 117756749807. The reversal of 117756749777 is 777947657711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98480481856 + 19276267921 = 313816^2 + 138839^2 .

It is a cyclic number.

It is not a de Polignac number, because 117756749777 - 2¹⁸ = 117756487633 is a prime.

It is not a weakly prime, because it can be changed into another prime (117756749771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58878374888 + 58878374889.

It is an arithmetic number, because the mean of its divisors is an integer number (58878374889).

Almost surely, 2^117756749777 is an apocalyptic number.

It is an amenable number.

117756749777 is a deficient number, since it is larger than the sum of its proper divisors (1).

117756749777 is an equidigital number, since it uses as much as digits as its factorization.

117756749777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127060920, while the sum is 68.

The spelling of 117756749777 in words is "one hundred seventeen billion, seven hundred fifty-six million, seven hundred forty-nine thousand, seven hundred seventy-seven".