4221292745 has 4 divisors (see below), whose sum is σ = 5065551300. Its totient is φ = 3377034192.

The previous prime is 4221292727. The next prime is 4221292753. The reversal of 4221292745 is 5472921224.

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 2643296569 + 1577996176 = 51413^2 + 39724^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221292745 - 2¹⁰ = 4221291721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4221292699 and 4221292708.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 422129270 + ... + 422129279.

It is an arithmetic number, because the mean of its divisors is an integer number (1266387825).

Almost surely, 2^4221292745 is an apocalyptic number.

It is an amenable number.

4221292745 is a deficient number, since it is larger than the sum of its proper divisors (844258555).

4221292745 is an equidigital number, since it uses as much as digits as its factorization.

4221292745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844258554.

The product of its digits is 80640, while the sum is 38.

The square root of 4221292745 is about 64971.4763954152. The cubic root of 4221292745 is about 1616.1505850968.

The spelling of 4221292745 in words is "four billion, two hundred twenty-one million, two hundred ninety-two thousand, seven hundred forty-five".