1257227897512 has 32 divisors (see below), whose sum is σ = 2369851701480. Its totient is φ = 625268367360.

The previous prime is 1257227897489. The next prime is 1257227897521. The reversal of 1257227897512 is 2157987227521.

It can be written as a sum of positive squares in 4 ways, for example, as 1018472529636 + 238755367876 = 1009194^2 + 488626^2 .

It is an unprimeable number.

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, 11620338 + ... + 11728030.

Almost surely, 2^{1257227897512} is an apocalyptic number.

It is an amenable number.

1257227897512 is a deficient number, since it is larger than the sum of its proper divisors (1112623803968).

1257227897512 is a wasteful number, since it uses less digits than its factorization.

1257227897512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115453 (or 115449 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 58.

The spelling of 1257227897512 in words is "one trillion, two hundred fifty-seven billion, two hundred twenty-seven million, eight hundred ninety-seven thousand, five hundred twelve".