120742879745 has 4 divisors (see below), whose sum is σ = 144891455700. Its totient is φ = 96594303792.

The previous prime is 120742879739. The next prime is 120742879759. The reversal of 120742879745 is 547978247021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93359580304 + 27383299441 = 305548^2 + 165479^2 .

It is a cyclic number.

It is not a de Polignac number, because 120742879745 - 2⁸ = 120742879489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12074287970 + ... + 12074287979.

It is an arithmetic number, because the mean of its divisors is an integer number (36222863925).

Almost surely, 2^120742879745 is an apocalyptic number.

It is an amenable number.

120742879745 is a deficient number, since it is larger than the sum of its proper divisors (24148575955).

120742879745 is an equidigital number, since it uses as much as digits as its factorization.

120742879745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24148575954.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 120742879745 in words is "one hundred twenty billion, seven hundred forty-two million, eight hundred seventy-nine thousand, seven hundred forty-five".