4251613634 has 4 divisors (see below), whose sum is σ = 6377420454. Its totient is φ = 2125806816.

The previous prime is 4251613633. The next prime is 4251613651. The reversal of 4251613634 is 4363161524.

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

It can be written as a sum of positive squares in only one way, i.e., 3769591609 + 482022025 = 61397^2 + 21955^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4251613594 and 4251613603.

It is not an unprimeable number, because it can be changed into a prime (4251613633) 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 as a sum of consecutive naturals, namely, 1062903407 + ... + 1062903410.

Almost surely, 2^4251613634 is an apocalyptic number.

4251613634 is a deficient number, since it is larger than the sum of its proper divisors (2125806820).

4251613634 is a wasteful number, since it uses less digits than its factorization.

4251613634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125806819.

The product of its digits is 51840, while the sum is 35.

The square root of 4251613634 is about 65204.3988853513. The cubic root of 4251613634 is about 1620.0108765718.

The spelling of 4251613634 in words is "four billion, two hundred fifty-one million, six hundred thirteen thousand, six hundred thirty-four".