420578135612 has 12 divisors (see below), whose sum is σ = 774749197320. Its totient is φ = 199221222096.

The previous prime is 420578135609. The next prime is 420578135639. The reversal of 420578135612 is 216531875024.

It is a super-2 number, since 2×420578135612² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766961343 + ... + 2766961494.

It is an arithmetic number, because the mean of its divisors is an integer number (64562433110).

Almost surely, 2^420578135612 is an apocalyptic number.

It is an amenable number.

420578135612 is a deficient number, since it is larger than the sum of its proper divisors (354171061708).

420578135612 is a wasteful number, since it uses less digits than its factorization.

420578135612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533922860 (or 5533922858 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 420578135612 in words is "four hundred twenty billion, five hundred seventy-eight million, one hundred thirty-five thousand, six hundred twelve".