1267313339128 has 64 divisors (see below), whose sum is σ = 2406111523200. Its totient is φ = 625739472000.

The previous prime is 1267313339119. The next prime is 1267313339141. The reversal of 1267313339128 is 8219333137621.

It is a super-2 number, since 2×1267313339128² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238079875 + ... + 238085197.

It is an arithmetic number, because the mean of its divisors is an integer number (37595492550).

Almost surely, 2^{1267313339128} is an apocalyptic number.

It is an amenable number.

1267313339128 is a deficient number, since it is larger than the sum of its proper divisors (1138798184072).

1267313339128 is a wasteful number, since it uses less digits than its factorization.

1267313339128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572 (or 6568 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The spelling of 1267313339128 in words is "one trillion, two hundred sixty-seven billion, three hundred thirteen million, three hundred thirty-nine thousand, one hundred twenty-eight".