42520420000 has 120 divisors (see below), whose sum is σ = 105163736832. Its totient is φ = 16917600000.

The previous prime is 42520419983. The next prime is 42520420003. The reversal of 42520420000 is 2402524.

It is a super-2 number, since 2×42520420000² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42520420000.

It is not an unprimeable number, because it can be changed into a prime (42520420003) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 3814435 + ... + 3825565.

Almost surely, 2^42520420000 is an apocalyptic number.

42520420000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42520420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52581868416).

42520420000 is an abundant number, since it is smaller than the sum of its proper divisors (62643316832).

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

42520420000 is a wasteful number, since it uses less digits than its factorization.

42520420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11352 (or 11329 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 42520420000 its reverse (2402524), we get a palindrome (42522822524).

The spelling of 42520420000 in words is "forty-two billion, five hundred twenty million, four hundred twenty thousand".