68423573241 has 81 divisors (see below), whose sum is σ = 110247419919. Its totient is φ = 40881658752.

The previous prime is 68423573233. The next prime is 68423573261. The reversal of 68423573241 is 14237532486.

The square root of 68423573241 is 261579.

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

It can be written as a sum of positive squares in only one way, i.e., 53270948025 + 15152625216 = 230805^2 + 123096^2 .

It is not a de Polignac number, because 68423573241 - 2³ = 68423573233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68423573261) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 306832056 + ... + 306832278.

Almost surely, 2^68423573241 is an apocalyptic number.

68423573241 is the 261579-th square number.

68423573241 is the 130790-th centered octagonal number.

It is an amenable number.

68423573241 is a deficient number, since it is larger than the sum of its proper divisors (41823846678).

68423573241 is a wasteful number, since it uses less digits than its factorization.

68423573241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 266 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The spelling of 68423573241 in words is "sixty-eight billion, four hundred twenty-three million, five hundred seventy-three thousand, two hundred forty-one".