420888792550 has 24 divisors (see below), whose sum is σ = 786301867656. Its totient is φ = 167613858240.

The previous prime is 420888792517. The next prime is 420888792551. The reversal of 420888792550 is 55297888024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420888792551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18530007 + ... + 18552706.

It is an arithmetic number, because the mean of its divisors is an integer number (32762577819).

Almost surely, 2^420888792550 is an apocalyptic number.

420888792550 is a deficient number, since it is larger than the sum of its proper divisors (365413075106).

420888792550 is a wasteful number, since it uses less digits than its factorization.

420888792550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37082952 (or 37082947 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 420888792550 in words is "four hundred twenty billion, eight hundred eighty-eight million, seven hundred ninety-two thousand, five hundred fifty".