830681807751 has 24 divisors (see below), whose sum is σ = 1252145802336. Its totient is φ = 529666283520.

The previous prime is 830681807749. The next prime is 830681807771. The reversal of 830681807751 is 157708186038.

It is a happy number.

It is not a de Polignac number, because 830681807751 - 2¹ = 830681807749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830681807771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2438631 + ... + 2758311.

It is an arithmetic number, because the mean of its divisors is an integer number (52172741764).

Almost surely, 2^830681807751 is an apocalyptic number.

830681807751 is a deficient number, since it is larger than the sum of its proper divisors (421463994585).

830681807751 is a wasteful number, since it uses less digits than its factorization.

830681807751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332263 (or 332260 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 830681807751 in words is "eight hundred thirty billion, six hundred eighty-one million, eight hundred seven thousand, seven hundred fifty-one".