4527672421 has 2 divisors, whose sum is σ = 4527672422. Its totient is φ = 4527672420.

The previous prime is 4527672403. The next prime is 4527672427. The reversal of 4527672421 is 1242767254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2279585025 + 2248087396 = 47745^2 + 47414^2 .

It is a cyclic number.

It is not a de Polignac number, because 4527672421 - 2⁷ = 4527672293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4527672427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263836210 + 2263836211.

It is an arithmetic number, because the mean of its divisors is an integer number (2263836211).

Almost surely, 2^4527672421 is an apocalyptic number.

It is an amenable number.

4527672421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4527672421 is an equidigital number, since it uses as much as digits as its factorization.

4527672421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 40.

The square root of 4527672421 is about 67287.9812522266. The cubic root of 4527672421 is about 1654.3408712027.

The spelling of 4527672421 in words is "four billion, five hundred twenty-seven million, six hundred seventy-two thousand, four hundred twenty-one".