421104168771 has 16 divisors (see below), whose sum is σ = 659631705600. Its totient is φ = 235582751520.

The previous prime is 421104168763. The next prime is 421104168781. The reversal of 421104168771 is 177861401124.

It is not a de Polignac number, because 421104168771 - 2³ = 421104168763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421104168721) 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 15 ways as a sum of consecutive naturals, for example, 490796971 + ... + 490797828.

It is an arithmetic number, because the mean of its divisors is an integer number (41226981600).

Almost surely, 2^421104168771 is an apocalyptic number.

421104168771 is a deficient number, since it is larger than the sum of its proper divisors (238527536829).

421104168771 is a wasteful number, since it uses less digits than its factorization.

421104168771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981594826.

The product of its (nonzero) digits is 75264, while the sum is 42.

Adding to 421104168771 its reverse (177861401124), we get a palindrome (598965569895).

The spelling of 421104168771 in words is "four hundred twenty-one billion, one hundred four million, one hundred sixty-eight thousand, seven hundred seventy-one".