4221451756 has 12 divisors (see below), whose sum is σ = 7400807568. Its totient is φ = 2106935312.

The previous prime is 4221451739. The next prime is 4221451777. The reversal of 4221451756 is 6571541224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945136 + ... + 949591.

It is an arithmetic number, because the mean of its divisors is an integer number (616733964).

Almost surely, 2^4221451756 is an apocalyptic number.

It is an amenable number.

4221451756 is a deficient number, since it is larger than the sum of its proper divisors (3179355812).

4221451756 is a wasteful number, since it uses less digits than its factorization.

4221451756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895288 (or 1895286 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 4221451756 is about 64972.7000824192. The cubic root of 4221451756 is about 1616.1708776557.

The spelling of 4221451756 in words is "four billion, two hundred twenty-one million, four hundred fifty-one thousand, seven hundred fifty-six".