427880280500 has 24 divisors (see below), whose sum is σ = 934490533704. Its totient is φ = 171152112000.

The previous prime is 427880280479. The next prime is 427880280517. The reversal of 427880280500 is 5082088724.

It can be written as a sum of positive squares in 4 ways, for example, as 4115735716 + 423764544784 = 64154^2 + 650972^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427879781 + ... + 427880780.

It is an arithmetic number, because the mean of its divisors is an integer number (38937105571).

Almost surely, 2^427880280500 is an apocalyptic number.

It is an amenable number.

427880280500 is an abundant number, since it is smaller than the sum of its proper divisors (506610253204).

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

427880280500 is a wasteful number, since it uses less digits than its factorization.

427880280500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855760580 (or 855760568 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The spelling of 427880280500 in words is "four hundred twenty-seven billion, eight hundred eighty million, two hundred eighty thousand, five hundred".