421738583471 has 2 divisors, whose sum is σ = 421738583472. Its totient is φ = 421738583470.

The previous prime is 421738583443. The next prime is 421738583489. The reversal of 421738583471 is 174385837124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421738583471 - 2⁶ = 421738583407 is a prime.

It is a super-3 number, since 3×421738583471³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421738283471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210869291735 + 210869291736.

It is an arithmetic number, because the mean of its divisors is an integer number (210869291736).

Almost surely, 2^421738583471 is an apocalyptic number.

421738583471 is a deficient number, since it is larger than the sum of its proper divisors (1).

421738583471 is an equidigital number, since it uses as much as digits as its factorization.

421738583471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 53.

The spelling of 421738583471 in words is "four hundred twenty-one billion, seven hundred thirty-eight million, five hundred eighty-three thousand, four hundred seventy-one".