42685601673 has 48 divisors (see below), whose sum is σ = 68456574144. Its totient is φ = 23324273280.

The previous prime is 42685601669. The next prime is 42685601681. The reversal of 42685601673 is 37610658624.

It is not a de Polignac number, because 42685601673 - 2² = 42685601669 is a prime.

It is a super-3 number, since 3×42685601673³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42685601173) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 766315 + ... + 820127.

It is an arithmetic number, because the mean of its divisors is an integer number (1426178628).

Almost surely, 2^42685601673 is an apocalyptic number.

42685601673 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42685601673 is a deficient number, since it is larger than the sum of its proper divisors (25770972471).

42685601673 is a wasteful number, since it uses less digits than its factorization.

42685601673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53926 (or 53883 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 42685601673 in words is "forty-two billion, six hundred eighty-five million, six hundred one thousand, six hundred seventy-three".