421334525115 has 24 divisors (see below), whose sum is σ = 834643631328. Its totient is φ = 192610068480.

The previous prime is 421334525033. The next prime is 421334525123. The reversal of 421334525115 is 511525433124.

421334525115 is a `hidden beast` number, since 4 + 2 + 13 + 3 + 4 + 525 + 115 = 666.

It is not a de Polignac number, because 421334525115 - 2¹¹ = 421334523067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421334525115.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668784646 + ... + 668785275.

It is an arithmetic number, because the mean of its divisors is an integer number (34776817972).

Almost surely, 2^421334525115 is an apocalyptic number.

421334525115 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

421334525115 is a deficient number, since it is larger than the sum of its proper divisors (413309106213).

421334525115 is a wasteful number, since it uses less digits than its factorization.

421334525115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337569939 (or 1337569936 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 421334525115 its reverse (511525433124), we get a palindrome (932859958239).

The spelling of 421334525115 in words is "four hundred twenty-one billion, three hundred thirty-four million, five hundred twenty-five thousand, one hundred fifteen".