42520163620 has 24 divisors (see below), whose sum is σ = 97409829888. Its totient is φ = 15461877600.

The previous prime is 42520163617. The next prime is 42520163629. The reversal of 42520163620 is 2636102524.

It is not an unprimeable number, because it can be changed into a prime (42520163629) 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 7 ways as a sum of consecutive naturals, for example, 96636516 + ... + 96636955.

It is an arithmetic number, because the mean of its divisors is an integer number (4058742912).

Almost surely, 2^42520163620 is an apocalyptic number.

It is an amenable number.

42520163620 is an abundant number, since it is smaller than the sum of its proper divisors (54889666268).

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

42520163620 is a wasteful number, since it uses less digits than its factorization.

42520163620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193273491 (or 193273489 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 42520163620 in words is "forty-two billion, five hundred twenty million, one hundred sixty-three thousand, six hundred twenty".