68033376733449 has 4 divisors (see below), whose sum is σ = 90711168977936. Its totient is φ = 45355584488964.

The previous prime is 68033376733429. The next prime is 68033376733453. The reversal of 68033376733449 is 94433767333086.

It is a happy number.

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 not a de Polignac number, because 68033376733449 - 2⁷ = 68033376733321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68033376733449.

It is not an unprimeable number, because it can be changed into a prime (68033376733429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11338896122239 + ... + 11338896122244.

It is an arithmetic number, because the mean of its divisors is an integer number (22677792244484).

Almost surely, 2^{68033376733449} is an apocalyptic number.

It is an amenable number.

68033376733449 is a deficient number, since it is larger than the sum of its proper divisors (22677792244487).

68033376733449 is a wasteful number, since it uses less digits than its factorization.

68033376733449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22677792244486.

The product of its (nonzero) digits is 493807104, while the sum is 66.

The spelling of 68033376733449 in words is "sixty-eight trillion, thirty-three billion, three hundred seventy-six million, seven hundred thirty-three thousand, four hundred forty-nine".