4271423521 has 2 divisors, whose sum is σ = 4271423522. Its totient is φ = 4271423520.

The previous prime is 4271423491. The next prime is 4271423581. The reversal of 4271423521 is 1253241724.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4033647121 + 237776400 = 63511^2 + 15420^2 .

It is a cyclic number.

It is not a de Polignac number, because 4271423521 - 2⁵ = 4271423489 is a prime.

It is not a weakly prime, because it can be changed into another prime (4271423581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135711760 + 2135711761.

It is an arithmetic number, because the mean of its divisors is an integer number (2135711761).

Almost surely, 2^4271423521 is an apocalyptic number.

It is an amenable number.

4271423521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4271423521 is an equidigital number, since it uses as much as digits as its factorization.

4271423521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 4271423521 is about 65356.1284119554. The cubic root of 4271423521 is about 1622.5230613933.

The spelling of 4271423521 in words is "four billion, two hundred seventy-one million, four hundred twenty-three thousand, five hundred twenty-one".