421304225451 has 8 divisors (see below), whose sum is σ = 561743107584. Its totient is φ = 280867413480.

The previous prime is 421304225423. The next prime is 421304225453. The reversal of 421304225451 is 154522403124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421304225451 - 2⁶ = 421304225387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421304225453) 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 7 ways as a sum of consecutive naturals, for example, 44530 + ... + 919016.

It is an arithmetic number, because the mean of its divisors is an integer number (70217888448).

Almost surely, 2^421304225451 is an apocalyptic number.

421304225451 is a deficient number, since it is larger than the sum of its proper divisors (140438882133).

421304225451 is a wasteful number, since it uses less digits than its factorization.

421304225451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035081.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 421304225451 its reverse (154522403124), we get a palindrome (575826628575).

It can be divided in two parts, 42130 and 4225451, that added together give a triangular number (4267581 = T₂₉₂₁).

The spelling of 421304225451 in words is "four hundred twenty-one billion, three hundred four million, two hundred twenty-five thousand, four hundred fifty-one".