4021418685804 has 48 divisors (see below), whose sum is σ = 10165613031168. Its totient is φ = 1229950248768.

The previous prime is 4021418685793. The next prime is 4021418685857. The reversal of 4021418685804 is 4085868141204.

It is a super-2 number, since 2×4021418685804² (a number of 26 digits) contains 22 as substring.

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, 77154562 + ... + 77206665.

It is an arithmetic number, because the mean of its divisors is an integer number (211783604816).

Almost surely, 2^{4021418685804} is an apocalyptic number.

It is an amenable number.

4021418685804 is an abundant number, since it is smaller than the sum of its proper divisors (6144194345364).

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

4021418685804 is a wasteful number, since it uses less digits than its factorization.

4021418685804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154361414 (or 154361412 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 51.

The spelling of 4021418685804 in words is "four trillion, twenty-one billion, four hundred eighteen million, six hundred eighty-five thousand, eight hundred four".