42316192681 has 9 divisors (see below), whose sum is σ = 49226633949. Its totient is φ = 36269788044.

The previous prime is 42316192661. The next prime is 42316192687. The reversal of 42316192681 is 18629161324.

The square root of 42316192681 is 205709.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 42316192681 - 2⁹ = 42316192169 is a prime.

It is a super-2 number, since 2×42316192681² (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 (42316192687) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1425270 + ... + 1454656.

Almost surely, 2^42316192681 is an apocalyptic number.

42316192681 is the 205709-th square number.

42316192681 is the 102855-th centered octagonal number.

It is an amenable number.

42316192681 is a deficient number, since it is larger than the sum of its proper divisors (6910441268).

42316192681 is an frugal number, since it uses more digits than its factorization.

42316192681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58788 (or 29394 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The spelling of 42316192681 in words is "forty-two billion, three hundred sixteen million, one hundred ninety-two thousand, six hundred eighty-one".