4854040921 has 2 divisors, whose sum is σ = 4854040922. Its totient is φ = 4854040920.

The previous prime is 4854040907. The next prime is 4854040951. The reversal of 4854040921 is 1290404584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3233173321 + 1620867600 = 56861^2 + 40260^2 .

It is a cyclic number.

It is not a de Polignac number, because 4854040921 - 2¹⁷ = 4853909849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4854040951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2427020460 + 2427020461.

It is an arithmetic number, because the mean of its divisors is an integer number (2427020461).

Almost surely, 2^4854040921 is an apocalyptic number.

It is an amenable number.

4854040921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4854040921 is an equidigital number, since it uses as much as digits as its factorization.

4854040921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 4854040921 is about 69670.9474673626. The cubic root of 4854040921 is about 1693.1722592006.

The spelling of 4854040921 in words is "four billion, eight hundred fifty-four million, forty thousand, nine hundred twenty-one".