420733665774 has 32 divisors (see below), whose sum is σ = 984172320000. Its totient is φ = 132863262552.

The previous prime is 420733665763. The next prime is 420733665827. The reversal of 420733665774 is 477566337024.

420733665774 is a `hidden beast` number, since 4 + 2 + 0 + 7 + 3 + 3 + 66 + 577 + 4 = 666.

It is a super-4 number, since 4×420733665774⁴ (a number of 48 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 420733665774.

It is a congruent number.

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, 205034874 + ... + 205036925.

It is an arithmetic number, because the mean of its divisors is an integer number (30755385000).

Almost surely, 2^420733665774 is an apocalyptic number.

420733665774 is an abundant number, since it is smaller than the sum of its proper divisors (563438654226).

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

420733665774 is a wasteful number, since it uses less digits than its factorization.

420733665774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410071829 (or 410071823 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 54.

The spelling of 420733665774 in words is "four hundred twenty billion, seven hundred thirty-three million, six hundred sixty-five thousand, seven hundred seventy-four".