60770077777 has 4 divisors (see below), whose sum is σ = 60891862000. Its totient is φ = 60648293556.

The previous prime is 60770077751. The next prime is 60770077783. The reversal of 60770077777 is 77777007706.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60770077777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60770077747) 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, 60891363 + ... + 60892360.

It is an arithmetic number, because the mean of its divisors is an integer number (15222965500).

Almost surely, 2^60770077777 is an apocalyptic number.

It is an amenable number.

60770077777 is a deficient number, since it is larger than the sum of its proper divisors (121784223).

60770077777 is a wasteful number, since it uses less digits than its factorization.

60770077777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121784222.

The product of its (nonzero) digits is 4941258, while the sum is 55.

The spelling of 60770077777 in words is "sixty billion, seven hundred seventy million, seventy-seven thousand, seven hundred seventy-seven".