1045391795919 has 12 divisors (see below), whose sum is σ = 1510098811416. Its totient is φ = 696887045712.

The previous prime is 1045391795879. The next prime is 1045391795999. The reversal of 1045391795919 is 9195971935401.

1045391795919 is a `hidden beast` number, since 1 + 0 + 4 + 5 + 39 + 1 + 7 + 9 + 591 + 9 = 666.

It is not a de Polignac number, because 1045391795919 - 2²⁹ = 1044854925007 is a prime.

It is a super-2 number, since 2×1045391795919² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045391795999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238909 + ... + 3547014.

It is an arithmetic number, because the mean of its divisors is an integer number (125841567618).

Almost surely, 2^{1045391795919} is an apocalyptic number.

1045391795919 is a deficient number, since it is larger than the sum of its proper divisors (464707015497).

1045391795919 is a wasteful number, since it uses less digits than its factorization.

1045391795919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803046 (or 6803043 counting only the distinct ones).

The product of its (nonzero) digits is 13778100, while the sum is 63.

The spelling of 1045391795919 in words is "one trillion, forty-five billion, three hundred ninety-one million, seven hundred ninety-five thousand, nine hundred nineteen".