42520163472 has 60 divisors (see below), whose sum is σ = 119014914304. Its totient is φ = 14171302080.

The previous prime is 42520163471. The next prime is 42520163551. The reversal of 42520163472 is 27436102524.

42520163472 is a `hidden beast` number, since 4 + 2 + 5 + 20 + 163 + 472 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (42520163471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1196553 + ... + 1231575.

Almost surely, 2^42520163472 is an apocalyptic number.

It is an amenable number.

42520163472 is an abundant number, since it is smaller than the sum of its proper divisors (76494750832).

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

42520163472 is a wasteful number, since it uses less digits than its factorization.

42520163472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43468 (or 43459 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

Adding to 42520163472 its reverse (27436102524), we get a palindrome (69956265996).

The spelling of 42520163472 in words is "forty-two billion, five hundred twenty million, one hundred sixty-three thousand, four hundred seventy-two".