1042561378744 has 16 divisors (see below), whose sum is σ = 1955387380320. Its totient is φ = 521124744000.

The previous prime is 1042561378711. The next prime is 1042561378753. The reversal of 1042561378744 is 4478731652401.

It is a junction number, because it is equal to n+sod(n) for n = 1042561378691 and 1042561378700.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19464757 + ... + 19518244.

It is an arithmetic number, because the mean of its divisors is an integer number (122211711270).

Almost surely, 2^{1042561378744} is an apocalyptic number.

It is an amenable number.

1042561378744 is a deficient number, since it is larger than the sum of its proper divisors (912826001576).

1042561378744 is a wasteful number, since it uses less digits than its factorization.

1042561378744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38986350 (or 38986346 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 1042561378744 in words is "one trillion, forty-two billion, five hundred sixty-one million, three hundred seventy-eight thousand, seven hundred forty-four".