120142767777 has 8 divisors (see below), whose sum is σ = 167155155264. Its totient is φ = 76612779408.

The previous prime is 120142767751. The next prime is 120142767779. The reversal of 120142767777 is 777767241021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120142767777 - 2⁶ = 120142767713 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (120142767779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870599698 + ... + 870599835.

It is an arithmetic number, because the mean of its divisors is an integer number (20894394408).

Almost surely, 2^120142767777 is an apocalyptic number.

It is an amenable number.

120142767777 is a deficient number, since it is larger than the sum of its proper divisors (47012387487).

120142767777 is a wasteful number, since it uses less digits than its factorization.

120142767777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741199559.

The product of its (nonzero) digits is 1613472, while the sum is 51.

The spelling of 120142767777 in words is "one hundred twenty billion, one hundred forty-two million, seven hundred sixty-seven thousand, seven hundred seventy-seven".