117777660746 has 4 divisors (see below), whose sum is σ = 176666491122. Its totient is φ = 58888830372.

The previous prime is 117777660739. The next prime is 117777660773. The reversal of 117777660746 is 647066777711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 647066777711 = 3109 ⋅208126979.

It can be written as a sum of positive squares in only one way, i.e., 112879200625 + 4898460121 = 335975^2 + 69989^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29444415185 + ... + 29444415188.

Almost surely, 2^117777660746 is an apocalyptic number.

117777660746 is a deficient number, since it is larger than the sum of its proper divisors (58888830376).

117777660746 is an equidigital number, since it uses as much as digits as its factorization.

117777660746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58888830375.

The product of its (nonzero) digits is 14521248, while the sum is 59.

The spelling of 117777660746 in words is "one hundred seventeen billion, seven hundred seventy-seven million, six hundred sixty thousand, seven hundred forty-six".