421449041759 has 4 divisors (see below), whose sum is σ = 421522972920. Its totient is φ = 421375110600.

The previous prime is 421449041743. The next prime is 421449041771. The reversal of 421449041759 is 957140944124.

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

It is a cyclic number.

It is not a de Polignac number, because 421449041759 - 2⁴ = 421449041743 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 (421449041719) 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, 36957029 + ... + 36968430.

It is an arithmetic number, because the mean of its divisors is an integer number (105380743230).

Almost surely, 2^421449041759 is an apocalyptic number.

421449041759 is a deficient number, since it is larger than the sum of its proper divisors (73931161).

421449041759 is an equidigital number, since it uses as much as digits as its factorization.

421449041759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73931160.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 421449041759 in words is "four hundred twenty-one billion, four hundred forty-nine million, forty-one thousand, seven hundred fifty-nine".