421966329600 has 216 divisors, whose sum is σ = 1474494220080. Its totient is φ = 105905192960.

The previous prime is 421966329557. The next prime is 421966329601. The reversal of 421966329600 is 6923669124.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 421966329600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421966329601) 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, 319995 + ... + 972794.

It is an arithmetic number, because the mean of its divisors is an integer number (6826362130).

Almost surely, 2^421966329600 is an apocalyptic number.

421966329600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421966329600 is an abundant number, since it is smaller than the sum of its proper divisors (1052527890480).

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

421966329600 is a wasteful number, since it uses less digits than its factorization.

421966329600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292835 (or 1292816 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 48.

The spelling of 421966329600 in words is "four hundred twenty-one billion, nine hundred sixty-six million, three hundred twenty-nine thousand, six hundred".