1044612563542 has 32 divisors (see below), whose sum is σ = 1599142656384. Its totient is φ = 511699680000.

The previous prime is 1044612563537. The next prime is 1044612563543. The reversal of 1044612563542 is 2453652164401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044612563543) 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, 7871317 + ... + 8002927.

It is an arithmetic number, because the mean of its divisors is an integer number (49973208012).

Almost surely, 2^{1044612563542} is an apocalyptic number.

1044612563542 is a deficient number, since it is larger than the sum of its proper divisors (554530092842).

1044612563542 is a wasteful number, since it uses less digits than its factorization.

1044612563542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132124.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 1044612563542 in words is "one trillion, forty-four billion, six hundred twelve million, five hundred sixty-three thousand, five hundred forty-two".