34728243858 has 512 divisors, whose sum is σ = 109107855360. Its totient is φ = 7907328000.

The previous prime is 34728243829. The next prime is 34728243941. The reversal of 34728243858 is 85834282743.

34728243858 is a `hidden beast` number, since 3 + 472 + 82 + 43 + 8 + 58 = 666.

34728243858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 66656638 + ... + 66657158.

It is an arithmetic number, because the mean of its divisors is an integer number (213101280).

Almost surely, 2^34728243858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34728243858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54553927680).

34728243858 is an abundant number, since it is smaller than the sum of its proper divisors (74379611502).

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

34728243858 is a wasteful number, since it uses less digits than its factorization.

34728243858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 625 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 34728243858 in words is "thirty-four billion, seven hundred twenty-eight million, two hundred forty-three thousand, eight hundred fifty-eight".