1297349286912 has 264 divisors, whose sum is σ = 4533060800736. Its totient is φ = 348866740224.

The previous prime is 1297349286851. The next prime is 1297349286971. The reversal of 1297349286912 is 2196829437921.

1297349286912 is a `hidden beast` number, since 1 + 2 + 9 + 7 + 349 + 286 + 9 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1297349286912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505228 + ... + 1688180.

Almost surely, 2^{1297349286912} is an apocalyptic number.

1297349286912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297349286912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2266530400368).

1297349286912 is an abundant number, since it is smaller than the sum of its proper divisors (3235711513824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297349286912 is a wasteful number, since it uses less digits than its factorization.

1297349286912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183003 (or 1182982 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 63.

The spelling of 1297349286912 in words is "one trillion, two hundred ninety-seven billion, three hundred forty-nine million, two hundred eighty-six thousand, nine hundred twelve".