120117777777 has 24 divisors (see below), whose sum is σ = 180238601088. Its totient is φ = 77025009600.

The previous prime is 120117777743. The next prime is 120117777781. The reversal of 120117777777 is 777777711021.

It is not a de Polignac number, because 120117777777 - 2⁷ = 120117777649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120117777797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2266213 + ... + 2318610.

It is an arithmetic number, because the mean of its divisors is an integer number (7509941712).

Almost surely, 2^120117777777 is an apocalyptic number.

It is an amenable number.

120117777777 is a deficient number, since it is larger than the sum of its proper divisors (60120823311).

120117777777 is a wasteful number, since it uses less digits than its factorization.

120117777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584941 (or 4584938 counting only the distinct ones).

The product of its (nonzero) digits is 1647086, while the sum is 54.

The spelling of 120117777777 in words is "one hundred twenty billion, one hundred seventeen million, seven hundred seventy-seven thousand, seven hundred seventy-seven".