1257145108627 has 8 divisors (see below), whose sum is σ = 1345004258960. Its totient is φ = 1171455320160.

The previous prime is 1257145108619. The next prime is 1257145108663. The reversal of 1257145108627 is 7268015417521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1257145108627 - 2³ = 1257145108619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1257145108697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542339268 + ... + 542341585.

It is an arithmetic number, because the mean of its divisors is an integer number (168125532370).

Almost surely, 2^{1257145108627} is an apocalyptic number.

1257145108627 is a deficient number, since it is larger than the sum of its proper divisors (87859150333).

1257145108627 is a wasteful number, since it uses less digits than its factorization.

1257145108627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084680933.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 1257145108627 in words is "one trillion, two hundred fifty-seven billion, one hundred forty-five million, one hundred eight thousand, six hundred twenty-seven".