120779001002500 has 45 divisors (see below), whose sum is σ = 264120721038867. Its totient is φ = 48311380602000.

The previous prime is 120779001002497. The next prime is 120779001002579. The reversal of 120779001002500 is 5200100977021.

The square root of 120779001002500 is 10989950.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9469073678596 + 111309927323904 = 3077186^2 + 10550352^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 549387601 + ... + 549607399.

Almost surely, 2^{120779001002500} is an apocalyptic number.

120779001002500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120779001002500 is the 10989950-th square number.

It is an amenable number.

120779001002500 is an abundant number, since it is smaller than the sum of its proper divisors (143341720036367).

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

120779001002500 is an frugal number, since it uses more digits than its factorization.

120779001002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439622 (or 219806 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

Adding to 120779001002500 its reverse (5200100977021), we get a palindrome (125979101979521).

The spelling of 120779001002500 in words is "one hundred twenty trillion, seven hundred seventy-nine billion, one million, two thousand, five hundred".