1625134770673 has 2 divisors, whose sum is σ = 1625134770674. Its totient is φ = 1625134770672.

The previous prime is 1625134770659. The next prime is 1625134770737. The reversal of 1625134770673 is 3760774315261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992747198689 + 632387571984 = 996367^2 + 795228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1625134770673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1625134770673.

It is not a weakly prime, because it can be changed into another prime (1625134710673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812567385336 + 812567385337.

It is an arithmetic number, because the mean of its divisors is an integer number (812567385337).

Almost surely, 2^{1625134770673} is an apocalyptic number.

It is an amenable number.

1625134770673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625134770673 is an equidigital number, since it uses as much as digits as its factorization.

1625134770673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 1625134770673 in words is "one trillion, six hundred twenty-five billion, one hundred thirty-four million, seven hundred seventy thousand, six hundred seventy-three".