68485754437 has 4 divisors (see below), whose sum is σ = 68493705280. Its totient is φ = 68477803596.

The previous prime is 68485754401. The next prime is 68485754471. The reversal of 68485754437 is 73445758486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68485754437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68485754737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3962487 + ... + 3979732.

It is an arithmetic number, because the mean of its divisors is an integer number (17123426320).

Almost surely, 2^68485754437 is an apocalyptic number.

It is an amenable number.

68485754437 is a deficient number, since it is larger than the sum of its proper divisors (7950843).

68485754437 is an equidigital number, since it uses as much as digits as its factorization.

68485754437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950842.

The product of its digits is 90316800, while the sum is 61.

The spelling of 68485754437 in words is "sixty-eight billion, four hundred eighty-five million, seven hundred fifty-four thousand, four hundred thirty-seven".