34728243857 has 4 divisors (see below), whose sum is σ = 34786808100. Its totient is φ = 34669679616.

The previous prime is 34728243829. The next prime is 34728243941. The reversal of 34728243857 is 75834282743.

34728243857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 20983260736 + 13744983121 = 144856^2 + 117239^2 .

It is a cyclic number.

It is not a de Polignac number, because 34728243857 - 2⁶ = 34728243793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34728243799 and 34728243808.

It is not an unprimeable number, because it can be changed into a prime (34728243827) 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, 29281232 + ... + 29282417.

It is an arithmetic number, because the mean of its divisors is an integer number (8696702025).

Almost surely, 2^34728243857 is an apocalyptic number.

It is an amenable number.

34728243857 is a deficient number, since it is larger than the sum of its proper divisors (58564243).

34728243857 is an equidigital number, since it uses as much as digits as its factorization.

34728243857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58564242.

The product of its digits is 9031680, while the sum is 53.

The spelling of 34728243857 in words is "thirty-four billion, seven hundred twenty-eight million, two hundred forty-three thousand, eight hundred fifty-seven".