4172756634 has 88 divisors (see below), whose sum is σ = 9518054580. Its totient is φ = 1371826368.

The previous prime is 4172756633. The next prime is 4172756647. The reversal of 4172756634 is 4366572714.

4172756634 is a `hidden beast` number, since 4 + 1 + 7 + 2 + 7 + 5 + 6 + 634 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4146716025 + 26040609 = 64395^2 + 5103^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4172756634.

It is not an unprimeable number, because it can be changed into a prime (4172756633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 10510524 + ... + 10510920.

Almost surely, 2^4172756634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4172756634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4759027290).

4172756634 is an abundant number, since it is smaller than the sum of its proper divisors (5345297946).

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

4172756634 is an frugal number, since it uses more digits than its factorization.

4172756634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 491 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 4172756634 is about 64596.8778966910. The cubic root of 4172756634 is about 1609.9325658779.

The spelling of 4172756634 in words is "four billion, one hundred seventy-two million, seven hundred fifty-six thousand, six hundred thirty-four".