1235982080256 has 864 divisors, whose sum is σ = 4299089276160. Its totient is φ = 308312801280.

The previous prime is 1235982080213. The next prime is 1235982080273. The reversal of 1235982080256 is 6520802895321.

It is a junction number, because it is equal to n+sod(n) for n = 1235982080199 and 1235982080208.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2142083040 + ... + 2142083616.

Almost surely, 2^{1235982080256} is an apocalyptic number.

1235982080256 is a gapful number since it is divisible by the number (16) 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 1235982080256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149544638080).

1235982080256 is an abundant number, since it is smaller than the sum of its proper divisors (3063107195904).

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

1235982080256 is a wasteful number, since it uses less digits than its factorization.

1235982080256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 726 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 1235982080256 in words is "one trillion, two hundred thirty-five billion, nine hundred eighty-two million, eighty thousand, two hundred fifty-six".