421723514880 has 192 divisors, whose sum is σ = 1499096289600. Its totient is φ = 112459530240.

The previous prime is 421723514869. The next prime is 421723514909. The reversal of 421723514880 is 88415327124.

421723514880 is a `hidden beast` number, since 4 + 217 + 2 + 351 + 4 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486186 + ... + 1039145.

It is an arithmetic number, because the mean of its divisors is an integer number (7807793175).

Almost surely, 2^421723514880 is an apocalyptic number.

421723514880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421723514880 is an abundant number, since it is smaller than the sum of its proper divisors (1077372774720).

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

421723514880 is a wasteful number, since it uses less digits than its factorization.

421723514880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525367 (or 1525341 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 421723514880 in words is "four hundred twenty-one billion, seven hundred twenty-three million, five hundred fourteen thousand, eight hundred eighty".