423481949872 has 10 divisors (see below), whose sum is σ = 820496277908. Its totient is φ = 211740974928.

The previous prime is 423481949843. The next prime is 423481949879. The reversal of 423481949872 is 278949184324.

It is a super-2 number, since 2×423481949872² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423481949872.

It is not an unprimeable number, because it can be changed into a prime (423481949879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13233810918 + ... + 13233810949.

Almost surely, 2^423481949872 is an apocalyptic number.

It is an amenable number.

423481949872 is a deficient number, since it is larger than the sum of its proper divisors (397014328036).

423481949872 is a wasteful number, since it uses less digits than its factorization.

423481949872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26467621875 (or 26467621869 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 61.

The spelling of 423481949872 in words is "four hundred twenty-three billion, four hundred eighty-one million, nine hundred forty-nine thousand, eight hundred seventy-two".