421149386939 has 2 divisors, whose sum is σ = 421149386940. Its totient is φ = 421149386938.

The previous prime is 421149386921. The next prime is 421149387017. The reversal of 421149386939 is 939683941124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421149386939 - 2²⁰ = 421148338363 is a prime.

It is a super-2 number, since 2×421149386939² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (421149382939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210574693469 + 210574693470.

It is an arithmetic number, because the mean of its divisors is an integer number (210574693470).

Almost surely, 2^421149386939 is an apocalyptic number.

421149386939 is a deficient number, since it is larger than the sum of its proper divisors (1).

421149386939 is an equidigital number, since it uses as much as digits as its factorization.

421149386939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 59.

The spelling of 421149386939 in words is "four hundred twenty-one billion, one hundred forty-nine million, three hundred eighty-six thousand, nine hundred thirty-nine".