421969486923 has 24 divisors (see below), whose sum is σ = 630245231616. Its totient is φ = 271774494000.

The previous prime is 421969486921. The next prime is 421969486951. The reversal of 421969486923 is 329684969124.

421969486923 is a `hidden beast` number, since 4 + 2 + 1 + 9 + 69 + 486 + 92 + 3 = 666.

It is not a de Polignac number, because 421969486923 - 2¹ = 421969486921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421969486921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124503 + ... + 1452048.

It is an arithmetic number, because the mean of its divisors is an integer number (26260217984).

Almost surely, 2^421969486923 is an apocalyptic number.

421969486923 is a deficient number, since it is larger than the sum of its proper divisors (208275744693).

421969486923 is a wasteful number, since it uses less digits than its factorization.

421969486923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577175 (or 2577172 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 63.

The spelling of 421969486923 in words is "four hundred twenty-one billion, nine hundred sixty-nine million, four hundred eighty-six thousand, nine hundred twenty-three".