1042777394556 has 48 divisors (see below), whose sum is σ = 2441018848800. Its totient is φ = 346468688640.

The previous prime is 1042777394551. The next prime is 1042777394557. The reversal of 1042777394556 is 6554937772401.

1042777394556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1042777394556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042777394551) 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, 11669326 + ... + 11758346.

It is an arithmetic number, because the mean of its divisors is an integer number (50854559350).

Almost surely, 2^{1042777394556} is an apocalyptic number.

It is an amenable number.

1042777394556 is an abundant number, since it is smaller than the sum of its proper divisors (1398241454244).

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

1042777394556 is a wasteful number, since it uses less digits than its factorization.

1042777394556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92174 (or 92172 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 60.

The spelling of 1042777394556 in words is "one trillion, forty-two billion, seven hundred seventy-seven million, three hundred ninety-four thousand, five hundred fifty-six".