1056004389423 has 12 divisors (see below), whose sum is σ = 1525729737168. Its totient is φ = 703822896960.

The previous prime is 1056004389409. The next prime is 1056004389457. The reversal of 1056004389423 is 3249834006501.

1056004389423 is a `hidden beast` number, since 1 + 0 + 5 + 600 + 4 + 38 + 9 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 1056004389423 - 2⁹ = 1056004388911 is a prime.

It is a super-2 number, since 2×1056004389423² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056004389823) 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, 14965290 + ... + 15035687.

It is an arithmetic number, because the mean of its divisors is an integer number (127144144764).

Almost surely, 2^{1056004389423} is an apocalyptic number.

1056004389423 is a deficient number, since it is larger than the sum of its proper divisors (469725347745).

1056004389423 is a wasteful number, since it uses less digits than its factorization.

1056004389423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30004894 (or 30004891 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 1056004389423 in words is "one trillion, fifty-six billion, four million, three hundred eighty-nine thousand, four hundred twenty-three".