1056173659837 has 2 divisors, whose sum is σ = 1056173659838. Its totient is φ = 1056173659836.

The previous prime is 1056173659811. The next prime is 1056173659843. The reversal of 1056173659837 is 7389563716501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 874787960601 + 181385699236 = 935301^2 + 425894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056173659837 is a prime.

It is a super-2 number, since 2×1056173659837² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056173659537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528086829918 + 528086829919.

It is an arithmetic number, because the mean of its divisors is an integer number (528086829919).

Almost surely, 2^{1056173659837} is an apocalyptic number.

It is an amenable number.

1056173659837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056173659837 is an equidigital number, since it uses as much as digits as its factorization.

1056173659837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 1056173659837 in words is "one trillion, fifty-six billion, one hundred seventy-three million, six hundred fifty-nine thousand, eight hundred thirty-seven".