421784487124 has 108 divisors (see below), whose sum is σ = 1014286740768. Its totient is φ = 151690593600.

The previous prime is 421784487097. The next prime is 421784487181.

421784487124 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214432 + ... + 943159.

It is an arithmetic number, because the mean of its divisors is an integer number (9391543896).

Almost surely, 2^421784487124 is an apocalyptic number.

421784487124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421784487124 is an abundant number, since it is smaller than the sum of its proper divisors (592502253644).

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

421784487124 is a wasteful number, since it uses less digits than its factorization.

421784487124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157646 (or 1157624 counting only the distinct ones).

The product of its digits is 3211264, while the sum is 52.

The spelling of 421784487124 in words is "four hundred twenty-one billion, seven hundred eighty-four million, four hundred eighty-seven thousand, one hundred twenty-four".