10445743809 has 12 divisors (see below), whose sum is σ = 15106291200. Its totient is φ = 6955524024.

The previous prime is 10445743783. The next prime is 10445743811. The reversal of 10445743809 is 90834754401.

10445743809 is a `hidden beast` number, since 1 + 0 + 44 + 574 + 38 + 0 + 9 = 666.

It is not a de Polignac number, because 10445743809 - 2⁷ = 10445743681 is a prime.

It is a super-2 number, since 2×10445743809² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10445743409) 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, 684129 + ... + 699230.

It is an arithmetic number, because the mean of its divisors is an integer number (1258857600).

Almost surely, 2^10445743809 is an apocalyptic number.

It is an amenable number.

10445743809 is a deficient number, since it is larger than the sum of its proper divisors (4660547391).

10445743809 is a wasteful number, since it uses less digits than its factorization.

10445743809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384204 (or 1384201 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 10445743809 in words is "ten billion, four hundred forty-five million, seven hundred forty-three thousand, eight hundred nine".