42503818320 has 120 divisors (see below), whose sum is σ = 145779169536. Its totient is φ = 11093186304.

The previous prime is 42503818309. The next prime is 42503818333. The reversal of 42503818320 is 2381830524.

42503818320 is a `hidden beast` number, since 4 + 250 + 3 + 81 + 8 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594172 + ... + 661851.

Almost surely, 2^42503818320 is an apocalyptic number.

42503818320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42503818320 is an abundant number, since it is smaller than the sum of its proper divisors (103275351216).

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

42503818320 is a wasteful number, since it uses less digits than its factorization.

42503818320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256089 (or 1256080 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 42503818320 in words is "forty-two billion, five hundred three million, eight hundred eighteen thousand, three hundred twenty".