120777777 has 16 divisors (see below), whose sum is σ = 180576000. Its totient is φ = 79777872.

The previous prime is 120777763. The next prime is 120777781. The reversal of 120777777 is 777777021.

It is not a de Polignac number, because 120777777 - 2⁸ = 120777521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120777757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17577 + ... + 23462.

It is an arithmetic number, because the mean of its divisors is an integer number (11286000).

Almost surely, 2^120777777 is an apocalyptic number.

It is an amenable number.

120777777 is a deficient number, since it is larger than the sum of its proper divisors (59798223).

120777777 is a wasteful number, since it uses less digits than its factorization.

120777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41157 (or 41151 counting only the distinct ones).

The product of its (nonzero) digits is 235298, while the sum is 45.

The square root of 120777777 is about 10989.8943125036. The cubic root of 120777777 is about 494.3057669281.

The spelling of 120777777 in words is "one hundred twenty million, seven hundred seventy-seven thousand, seven hundred seventy-seven".