42078480520 has 64 divisors (see below), whose sum is σ = 95270451120. Its totient is φ = 16726155264.

The previous prime is 42078480517. The next prime is 42078480557. The reversal of 42078480520 is 2508487024.

It can be written as a sum of positive squares in 8 ways, for example, as 31337604 + 42047142916 = 5598^2 + 205054^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4214254 + ... + 4224226.

Almost surely, 2^42078480520 is an apocalyptic number.

42078480520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42078480520 is an abundant number, since it is smaller than the sum of its proper divisors (53191970600).

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

42078480520 is a wasteful number, since it uses less digits than its factorization.

42078480520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10634 (or 10630 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 40.

The spelling of 42078480520 in words is "forty-two billion, seventy-eight million, four hundred eighty thousand, five hundred twenty".