421142449039 has 4 divisors (see below), whose sum is σ = 453538022056. Its totient is φ = 388746876024.

The previous prime is 421142448997. The next prime is 421142449067. The reversal of 421142449039 is 930944241124.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 421142449039 - 2²¹ = 421140351887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421142448986 and 421142449004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421142449339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16197786489 + ... + 16197786514.

It is an arithmetic number, because the mean of its divisors is an integer number (113384505514).

Almost surely, 2^421142449039 is an apocalyptic number.

421142449039 is a deficient number, since it is larger than the sum of its proper divisors (32395573017).

421142449039 is a wasteful number, since it uses less digits than its factorization.

421142449039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32395573016.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 421142449039 in words is "four hundred twenty-one billion, one hundred forty-two million, four hundred forty-nine thousand, thirty-nine".