4521261634 has 16 divisors (see below), whose sum is σ = 6953306976. Its totient is φ = 2203588000.

The previous prime is 4521261599. The next prime is 4521261659. The reversal of 4521261634 is 4361621254.

It is a self number, because there is not a number n which added to its sum of digits gives 4521261634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74109 + ... + 120559.

It is an arithmetic number, because the mean of its divisors is an integer number (434581686).

Almost surely, 2^4521261634 is an apocalyptic number.

4521261634 is a deficient number, since it is larger than the sum of its proper divisors (2432045342).

4521261634 is a wasteful number, since it uses less digits than its factorization.

4521261634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47681.

The product of its digits is 34560, while the sum is 34.

The square root of 4521261634 is about 67240.3274382271. The cubic root of 4521261634 is about 1653.5597018769.

Adding to 4521261634 its reverse (4361621254), we get a palindrome (8882882888).

The spelling of 4521261634 in words is "four billion, five hundred twenty-one million, two hundred sixty-one thousand, six hundred thirty-four".