1057249385894 has 12 divisors (see below), whose sum is σ = 1717248263436. Its totient is φ = 487961254872.

The previous prime is 1057249385893. The next prime is 1057249385917. The reversal of 1057249385894 is 4985839427501.

It is a super-2 number, since 2×1057249385894² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057249385894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057249385893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1563978044 + ... + 1563978719.

It is an arithmetic number, because the mean of its divisors is an integer number (143104021953).

Almost surely, 2^{1057249385894} is an apocalyptic number.

1057249385894 is a deficient number, since it is larger than the sum of its proper divisors (659998877542).

1057249385894 is a wasteful number, since it uses less digits than its factorization.

1057249385894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127956791 (or 3127956778 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 1057249385894 in words is "one trillion, fifty-seven billion, two hundred forty-nine million, three hundred eighty-five thousand, eight hundred ninety-four".