4247981051 has 4 divisors (see below), whose sum is σ = 4346771352. Its totient is φ = 4149190752.

The previous prime is 4247981047. The next prime is 4247981099. The reversal of 4247981051 is 1501897424.

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

It is a cyclic number.

It is not a de Polignac number, because 4247981051 - 2² = 4247981047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4247989051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49395086 + ... + 49395171.

It is an arithmetic number, because the mean of its divisors is an integer number (1086692838).

Almost surely, 2^4247981051 is an apocalyptic number.

4247981051 is a deficient number, since it is larger than the sum of its proper divisors (98790301).

4247981051 is an equidigital number, since it uses as much as digits as its factorization.

4247981051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98790300.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 4247981051 is about 65176.5375806356. The cubic root of 4247981051 is about 1619.5493654631.

The spelling of 4247981051 in words is "four billion, two hundred forty-seven million, nine hundred eighty-one thousand, fifty-one".