830785803137 has 4 divisors (see below), whose sum is σ = 831828195156. Its totient is φ = 829743411120.

The previous prime is 830785803121. The next prime is 830785803151. The reversal of 830785803137 is 731308587038.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 655389012721 + 175396790416 = 809561^2 + 418804^2 .

It is a cyclic number.

It is not a de Polignac number, because 830785803137 - 2⁴ = 830785803121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (830785803157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521194814 + ... + 521196407.

It is an arithmetic number, because the mean of its divisors is an integer number (207957048789).

Almost surely, 2^830785803137 is an apocalyptic number.

It is an amenable number.

830785803137 is a deficient number, since it is larger than the sum of its proper divisors (1042392019).

830785803137 is a wasteful number, since it uses less digits than its factorization.

830785803137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042392018.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 830785803137 in words is "eight hundred thirty billion, seven hundred eighty-five million, eight hundred three thousand, one hundred thirty-seven".