68757077577 has 4 divisors (see below), whose sum is σ = 91676103440. Its totient is φ = 45838051716.

The previous prime is 68757077573. The next prime is 68757077579. The reversal of 68757077577 is 77577075786.

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 68757077577 - 2² = 68757077573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68757077573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11459512927 + ... + 11459512932.

It is an arithmetic number, because the mean of its divisors is an integer number (22919025860).

Almost surely, 2^68757077577 is an apocalyptic number.

It is an amenable number.

68757077577 is a deficient number, since it is larger than the sum of its proper divisors (22919025863).

68757077577 is a wasteful number, since it uses less digits than its factorization.

68757077577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22919025862.

The product of its (nonzero) digits is 141178800, while the sum is 66.

The spelling of 68757077577 in words is "sixty-eight billion, seven hundred fifty-seven million, seventy-seven thousand, five hundred seventy-seven".