68077769 has 8 divisors (see below), whose sum is σ = 72203712. Its totient is φ = 64049040.

The previous prime is 68077759. The next prime is 68077777. The reversal of 68077769 is 96777086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68077769 is a prime.

It is a super-2 number, since 2×68077769² = 9269165264034722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68077739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22859 + ... + 25664.

It is an arithmetic number, because the mean of its divisors is an integer number (9025464).

Almost surely, 2^68077769 is an apocalyptic number.

It is an amenable number.

68077769 is a deficient number, since it is larger than the sum of its proper divisors (4125943).

68077769 is a wasteful number, since it uses less digits than its factorization.

68077769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48607.

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 68077769 is about 8250.9253420450. The cubic root of 68077769 is about 408.3210520069.

The spelling of 68077769 in words is "sixty-eight million, seventy-seven thousand, seven hundred sixty-nine".