1377257673625 has 8 divisors (see below), whose sum is σ = 1718817576840. Its totient is φ = 1101806138800.

The previous prime is 1377257673619. The next prime is 1377257673629. The reversal of 1377257673625 is 5263767527731.

It can be written as a sum of positive squares in 4 ways, for example, as 943902729 + 1376313770896 = 30723^2 + 1173164^2 .

It is not a de Polignac number, because 1377257673625 - 2¹¹ = 1377257671577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1377257673629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5509030570 + ... + 5509030819.

It is an arithmetic number, because the mean of its divisors is an integer number (214852197105).

Almost surely, 2^{1377257673625} is an apocalyptic number.

It is an amenable number.

1377257673625 is a deficient number, since it is larger than the sum of its proper divisors (341559903215).

1377257673625 is an equidigital number, since it uses as much as digits as its factorization.

1377257673625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018061404 (or 11018061394 counting only the distinct ones).

The product of its digits is 77792400, while the sum is 61.

The spelling of 1377257673625 in words is "one trillion, three hundred seventy-seven billion, two hundred fifty-seven million, six hundred seventy-three thousand, six hundred twenty-five".