1398900776256 has 336 divisors, whose sum is σ = 4223522160000. Its totient is φ = 442128347136.

The previous prime is 1398900776237. The next prime is 1398900776267. The reversal of 1398900776256 is 6526770098931.

It is a junction number, because it is equal to n+sod(n) for n = 1398900776193 and 1398900776202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 466454245 + ... + 466457243.

Almost surely, 2^{1398900776256} is an apocalyptic number.

1398900776256 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 1398900776256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2111761080000).

1398900776256 is an abundant number, since it is smaller than the sum of its proper divisors (2824621383744).

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

1398900776256 is a wasteful number, since it uses less digits than its factorization.

1398900776256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 63.

The spelling of 1398900776256 in words is "one trillion, three hundred ninety-eight billion, nine hundred million, seven hundred seventy-six thousand, two hundred fifty-six".