1245706889425 has 6 divisors (see below), whose sum is σ = 1544676542918. Its totient is φ = 996565511520.

The previous prime is 1245706889411. The next prime is 1245706889431. The reversal of 1245706889425 is 5249886075421.

It can be written as a sum of positive squares in 3 ways, for example, as 59522336784 + 1186184552641 = 243972^2 + 1089121^2 .

It is not a de Polignac number, because 1245706889425 - 2⁵ = 1245706889393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24914137764 + ... + 24914137813.

Almost surely, 2^{1245706889425} is an apocalyptic number.

It is an amenable number.

1245706889425 is a deficient number, since it is larger than the sum of its proper divisors (298969653493).

1245706889425 is an equidigital number, since it uses as much as digits as its factorization.

1245706889425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49828275587 (or 49828275582 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 1245706889425 in words is "one trillion, two hundred forty-five billion, seven hundred six million, eight hundred eighty-nine thousand, four hundred twenty-five".