1777776704442 has 16 divisors (see below), whose sum is σ = 3950614898880. Its totient is φ = 592592234796.

The previous prime is 1777776704441. The next prime is 1777776704447. The reversal of 1777776704442 is 2444076777771.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1777776704442.

It is not an unprimeable number, because it can be changed into a prime (1777776704441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16460895358 + ... + 16460895465.

It is an arithmetic number, because the mean of its divisors is an integer number (246913431180).

Almost surely, 2^{1777776704442} is an apocalyptic number.

1777776704442 is an abundant number, since it is smaller than the sum of its proper divisors (2172838194438).

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

1777776704442 is a wasteful number, since it uses less digits than its factorization.

1777776704442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32921790834 (or 32921790828 counting only the distinct ones).

The product of its (nonzero) digits is 90354432, while the sum is 63.

The spelling of 1777776704442 in words is "one trillion, seven hundred seventy-seven billion, seven hundred seventy-six million, seven hundred four thousand, four hundred forty-two".