421117272625 has 16 divisors (see below), whose sum is σ = 600633551232. Its totient is φ = 288766129200.

The previous prime is 421117272617. The next prime is 421117272659. The reversal of 421117272625 is 526272711124.

It is not a de Polignac number, because 421117272625 - 2³ = 421117272617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240637567 + ... + 240639316.

It is an arithmetic number, because the mean of its divisors is an integer number (37539596952).

Almost surely, 2^421117272625 is an apocalyptic number.

It is an amenable number.

421117272625 is a deficient number, since it is larger than the sum of its proper divisors (179516278607).

421117272625 is an equidigital number, since it uses as much as digits as its factorization.

421117272625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481276905 (or 481276895 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

Adding to 421117272625 its reverse (526272711124), we get a palindrome (947389983749).

The spelling of 421117272625 in words is "four hundred twenty-one billion, one hundred seventeen million, two hundred seventy-two thousand, six hundred twenty-five".