1257870071351 has 8 divisors (see below), whose sum is σ = 1287342879504. Its totient is φ = 1228407264000.

The previous prime is 1257870071347. The next prime is 1257870071387. The reversal of 1257870071351 is 1531700787521.

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 1257870071351 - 2² = 1257870071347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1257870071296 and 1257870071305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1257870077351) 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, 2245400 + ... + 2749101.

It is an arithmetic number, because the mean of its divisors is an integer number (160917859938).

Almost surely, 2^{1257870071351} is an apocalyptic number.

1257870071351 is a deficient number, since it is larger than the sum of its proper divisors (29472808153).

1257870071351 is an equidigital number, since it uses as much as digits as its factorization.

1257870071351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000401.

The product of its (nonzero) digits is 411600, while the sum is 47.

The spelling of 1257870071351 in words is "one trillion, two hundred fifty-seven billion, eight hundred seventy million, seventy-one thousand, three hundred fifty-one".