4857292021 has 2 divisors, whose sum is σ = 4857292022. Its totient is φ = 4857292020.

The previous prime is 4857292019. The next prime is 4857292049. The reversal of 4857292021 is 1202927584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3026650225 + 1830641796 = 55015^2 + 42786^2 .

It is a cyclic number.

It is not a de Polignac number, because 4857292021 - 2¹ = 4857292019 is a prime.

Together with 4857292019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4857292061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428646010 + 2428646011.

It is an arithmetic number, because the mean of its divisors is an integer number (2428646011).

Almost surely, 2^4857292021 is an apocalyptic number.

It is an amenable number.

4857292021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4857292021 is an equidigital number, since it uses as much as digits as its factorization.

4857292021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 4857292021 is about 69694.2753818418. The cubic root of 4857292021 is about 1693.5501878804.

The spelling of 4857292021 in words is "four billion, eight hundred fifty-seven million, two hundred ninety-two thousand, twenty-one".