421471734013 has 4 divisors (see below), whose sum is σ = 459787346208. Its totient is φ = 383156121820.

The previous prime is 421471734007. The next prime is 421471734037. The reversal of 421471734013 is 310437174124.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421471734013 - 2¹³ = 421471725821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421471734043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19157806081 + ... + 19157806102.

It is an arithmetic number, because the mean of its divisors is an integer number (114946836552).

Almost surely, 2^421471734013 is an apocalyptic number.

It is an amenable number.

421471734013 is a deficient number, since it is larger than the sum of its proper divisors (38315612195).

421471734013 is a wasteful number, since it uses less digits than its factorization.

421471734013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38315612194.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 421471734013 in words is "four hundred twenty-one billion, four hundred seventy-one million, seven hundred thirty-four thousand, thirteen".