120774785415 has 36 divisors (see below), whose sum is σ = 196593097896. Its totient is φ = 63314193600.

The previous prime is 120774785387. The next prime is 120774785423. The reversal of 120774785415 is 514587477021.

It is not a de Polignac number, because 120774785415 - 2⁹ = 120774784903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82103130 + ... + 82104600.

It is an arithmetic number, because the mean of its divisors is an integer number (5460919386).

Almost surely, 2^120774785415 is an apocalyptic number.

120774785415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120774785415 is a deficient number, since it is larger than the sum of its proper divisors (75818312481).

120774785415 is an frugal number, since it uses more digits than its factorization.

120774785415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072 (or 1540 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The spelling of 120774785415 in words is "one hundred twenty billion, seven hundred seventy-four million, seven hundred eighty-five thousand, four hundred fifteen".