120777817853 has 8 divisors (see below), whose sum is σ = 150580136640. Its totient is φ = 94112585280.

The previous prime is 120777817843. The next prime is 120777817861. The reversal of 120777817853 is 358718777021.

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

It is not a de Polignac number, because 120777817853 - 2⁸ = 120777817597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120777817843) 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, 784271468 + ... + 784271621.

It is an arithmetic number, because the mean of its divisors is an integer number (18822517080).

Almost surely, 2^120777817853 is an apocalyptic number.

It is an amenable number.

120777817853 is a deficient number, since it is larger than the sum of its proper divisors (29802318787).

120777817853 is a wasteful number, since it uses less digits than its factorization.

120777817853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568543107.

The product of its (nonzero) digits is 4609920, while the sum is 56.

The spelling of 120777817853 in words is "one hundred twenty billion, seven hundred seventy-seven million, eight hundred seventeen thousand, eight hundred fifty-three".