1273673447425 has 6 divisors (see below), whose sum is σ = 1579355074838. Its totient is φ = 1018938757920.

The previous prime is 1273673447401. The next prime is 1273673447447. The reversal of 1273673447425 is 5247443763721.

It can be written as a sum of positive squares in 3 ways, for example, as 12092961024 + 1261580486401 = 109968^2 + 1123201^2 .

It is not a de Polignac number, because 1273673447425 - 2⁵ = 1273673447393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25473468924 + ... + 25473468973.

Almost surely, 2^{1273673447425} is an apocalyptic number.

It is an amenable number.

1273673447425 is a deficient number, since it is larger than the sum of its proper divisors (305681627413).

1273673447425 is an equidigital number, since it uses as much as digits as its factorization.

1273673447425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50946937907 (or 50946937902 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 55.

The spelling of 1273673447425 in words is "one trillion, two hundred seventy-three billion, six hundred seventy-three million, four hundred forty-seven thousand, four hundred twenty-five".