421729160888 has 16 divisors (see below), whose sum is σ = 903705344880. Its totient is φ = 180741068928.

The previous prime is 421729160857. The next prime is 421729160921. The reversal of 421729160888 is 888061927124.

It is a Harshad number since it is a multiple of its sum of digits (56), and also a Moran number because the ratio is a prime number: 7530877873 = 421729160888 / (4 + 2 + 1 + 7 + 2 + 9 + 1 + 6 + 0 + 8 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3765438881 + ... + 3765438992.

It is an arithmetic number, because the mean of its divisors is an integer number (56481584055).

Almost surely, 2^421729160888 is an apocalyptic number.

It is an amenable number.

421729160888 is an abundant number, since it is smaller than the sum of its proper divisors (481976183992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421729160888 is a wasteful number, since it uses less digits than its factorization.

421729160888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530877886 (or 7530877882 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 421729160888 in words is "four hundred twenty-one billion, seven hundred twenty-nine million, one hundred sixty thousand, eight hundred eighty-eight".