421535421151 has 8 divisors (see below), whose sum is σ = 454004698784. Its totient is φ = 389072354400.

The previous prime is 421535421149. The next prime is 421535421163. The reversal of 421535421151 is 151124535124.

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

It is a cyclic number.

It is not a de Polignac number, because 421535421151 - 2¹ = 421535421149 is a prime.

It is a super-2 number, since 2×421535421151² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421535451151) 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, 1411275 + ... + 1683676.

It is an arithmetic number, because the mean of its divisors is an integer number (56750587348).

Almost surely, 2^421535421151 is an apocalyptic number.

421535421151 is a deficient number, since it is larger than the sum of its proper divisors (32469277633).

421535421151 is a wasteful number, since it uses less digits than its factorization.

421535421151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105441.

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

Adding to 421535421151 its reverse (151124535124), we get a palindrome (572659956275).

The spelling of 421535421151 in words is "four hundred twenty-one billion, five hundred thirty-five million, four hundred twenty-one thousand, one hundred fifty-one".