420261022864 has 20 divisors (see below), whose sum is σ = 814265961520. Its totient is φ = 210127871520.

The previous prime is 420261022801. The next prime is 420261022871. The reversal of 420261022864 is 468220162024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046979 + ... + 2242909.

It is an arithmetic number, because the mean of its divisors is an integer number (40713298076).

Almost surely, 2^420261022864 is an apocalyptic number.

It is an amenable number.

420261022864 is a deficient number, since it is larger than the sum of its proper divisors (394004938656).

420261022864 is a wasteful number, since it uses less digits than its factorization.

420261022864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329998 (or 329992 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

Adding to 420261022864 its reverse (468220162024), we get a palindrome (888481184888).

The spelling of 420261022864 in words is "four hundred twenty billion, two hundred sixty-one million, twenty-two thousand, eight hundred sixty-four".