421712500507 has 16 divisors (see below), whose sum is σ = 444155215680. Its totient is φ = 399613243392.

The previous prime is 421712500487. The next prime is 421712500571. The reversal of 421712500507 is 705005217124.

It is a cyclic number.

It is not a de Polignac number, because 421712500507 - 2¹⁵ = 421712467739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421712500007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25906723 + ... + 25922995.

It is an arithmetic number, because the mean of its divisors is an integer number (27759700980).

Almost surely, 2^421712500507 is an apocalyptic number.

421712500507 is a deficient number, since it is larger than the sum of its proper divisors (22442715173).

421712500507 is a wasteful number, since it uses less digits than its factorization.

421712500507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26742.

The product of its (nonzero) digits is 19600, while the sum is 34.

The spelling of 421712500507 in words is "four hundred twenty-one billion, seven hundred twelve million, five hundred thousand, five hundred seven".