42777700777 has 16 divisors (see below), whose sum is σ = 49293256320. Its totient is φ = 36363825792.

The previous prime is 42777700751. The next prime is 42777700783. The reversal of 42777700777 is 77700777724.

It is not a de Polignac number, because 42777700777 - 2³⁵ = 8417962409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42777700577) 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, 904203 + ... + 950335.

It is an arithmetic number, because the mean of its divisors is an integer number (3080828520).

Almost surely, 2^42777700777 is an apocalyptic number.

It is an amenable number.

42777700777 is a deficient number, since it is larger than the sum of its proper divisors (6515555543).

42777700777 is a wasteful number, since it uses less digits than its factorization.

42777700777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47232.

The product of its (nonzero) digits is 6588344, while the sum is 55.

The spelling of 42777700777 in words is "forty-two billion, seven hundred seventy-seven million, seven hundred thousand, seven hundred seventy-seven".