120778491024 has 45 divisors (see below), whose sum is σ = 338023698649. Its totient is φ = 40258106880.

The previous prime is 120778491019. The next prime is 120778491047. The reversal of 120778491024 is 420194877021.

The square root of 120778491024 is 347532.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114198036624 + 6580454400 = 337932^2 + 81120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4155904 + ... + 4184864.

Almost surely, 2^120778491024 is an apocalyptic number.

120778491024 is the 347532-nd square number.

It is an amenable number.

120778491024 is an abundant number, since it is smaller than the sum of its proper divisors (217245207625).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120778491024 is an frugal number, since it uses more digits than its factorization.

120778491024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57936 (or 28966 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 120778491024 in words is "one hundred twenty billion, seven hundred seventy-eight million, four hundred ninety-one thousand, twenty-four".