1044542191464 has 128 divisors (see below), whose sum is σ = 2919728640000. Its totient is φ = 345998423232.

The previous prime is 1044542191397. The next prime is 1044542191471. The reversal of 1044542191464 is 4641912454401.

1044542191464 is a `hidden beast` number, since 1 + 0 + 4 + 454 + 2 + 191 + 4 + 6 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35361069 + ... + 35390595.

It is an arithmetic number, because the mean of its divisors is an integer number (22810380000).

Almost surely, 2^{1044542191464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044542191464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459864320000).

1044542191464 is an abundant number, since it is smaller than the sum of its proper divisors (1875186448536).

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

1044542191464 is a wasteful number, since it uses less digits than its factorization.

1044542191464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30564 (or 30554 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 1044542191464 in words is "one trillion, forty-four billion, five hundred forty-two million, one hundred ninety-one thousand, four hundred sixty-four".