42657482081 has 6 divisors (see below), whose sum is σ = 43672589010. Its totient is φ = 41665445808.

The previous prime is 42657482051. The next prime is 42657482083. The reversal of 42657482081 is 18028475624.

42657482081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 41946726481 + 710755600 = 204809^2 + 26660^2 .

It is not a de Polignac number, because 42657482081 - 2¹⁸ = 42657219937 is a prime.

It is a super-2 number, since 2×42657482081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42657482083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11533436 + ... + 11537133.

It is an arithmetic number, because the mean of its divisors is an integer number (7278764835).

Almost surely, 2^42657482081 is an apocalyptic number.

It is an amenable number.

42657482081 is a deficient number, since it is larger than the sum of its proper divisors (1015106929).

42657482081 is an equidigital number, since it uses as much as digits as its factorization.

42657482081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23070655 (or 23070612 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 47.

The spelling of 42657482081 in words is "forty-two billion, six hundred fifty-seven million, four hundred eighty-two thousand, eighty-one".