780031016256 has 112 divisors (see below), whose sum is σ = 2112264000000. Its totient is φ = 253911178752.

The previous prime is 780031016231. The next prime is 780031016273. The reversal of 780031016256 is 652610130087.

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, 74290495 + ... + 74300993.

It is an arithmetic number, because the mean of its divisors is an integer number (18859500000).

Almost surely, 2^780031016256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780031016256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1056132000000).

780031016256 is an abundant number, since it is smaller than the sum of its proper divisors (1332232983744).

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

780031016256 is a wasteful number, since it uses less digits than its factorization.

780031016256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19556 (or 19546 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 780031016256 in words is "seven hundred eighty billion, thirty-one million, sixteen thousand, two hundred fifty-six".