120777776 has 20 divisors (see below), whose sum is σ = 267436752. Its totient is φ = 51761856.

The previous prime is 120777763. The next prime is 120777781. The reversal of 120777776 is 677777021.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539075 + ... + 539298.

Almost surely, 2^120777776 is an apocalyptic number.

120777776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120777776 is an abundant number, since it is smaller than the sum of its proper divisors (146658976).

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

120777776 is a wasteful number, since it uses less digits than its factorization.

120777776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078388 (or 1078382 counting only the distinct ones).

The product of its (nonzero) digits is 201684, while the sum is 44.

The square root of 120777776 is about 10989.8942670073. The cubic root of 120777776 is about 494.3057655638.

The spelling of 120777776 in words is "one hundred twenty million, seven hundred seventy-seven thousand, seven hundred seventy-six".