421411523155 has 32 divisors (see below), whose sum is σ = 581704473600. Its totient is φ = 287087898240.

The previous prime is 421411523147. The next prime is 421411523171. The reversal of 421411523155 is 551325114124.

It is not a de Polignac number, because 421411523155 - 2³ = 421411523147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421411523155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4670620 + ... + 4759990.

It is an arithmetic number, because the mean of its divisors is an integer number (18178264800).

Almost surely, 2^421411523155 is an apocalyptic number.

421411523155 is a deficient number, since it is larger than the sum of its proper divisors (160292950445).

421411523155 is a wasteful number, since it uses less digits than its factorization.

421411523155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90259.

The product of its digits is 24000, while the sum is 34.

Adding to 421411523155 its reverse (551325114124), we get a palindrome (972736637279).

The spelling of 421411523155 in words is "four hundred twenty-one billion, four hundred eleven million, five hundred twenty-three thousand, one hundred fifty-five".