1293827459856 has 40 divisors (see below), whose sum is σ = 3358228330464. Its totient is φ = 429231855360.

The previous prime is 1293827459851. The next prime is 1293827459887. The reversal of 1293827459856 is 6589547283921.

It is not an unprimeable number, because it can be changed into a prime (1293827459851) 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, 63863661 + ... + 63883916.

Almost surely, 2^{1293827459856} is an apocalyptic number.

1293827459856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1293827459856 is an abundant number, since it is smaller than the sum of its proper divisors (2064400870608).

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

1293827459856 is a wasteful number, since it uses less digits than its factorization.

1293827459856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127747799 (or 127747793 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 69.

The spelling of 1293827459856 in words is "one trillion, two hundred ninety-three billion, eight hundred twenty-seven million, four hundred fifty-nine thousand, eight hundred fifty-six".