77953035977 has 4 divisors (see below), whose sum is σ = 77955795216. Its totient is φ = 77950276740.

The previous prime is 77953035949. The next prime is 77953035997.

77953035977 is nontrivially palindromic in base 10.

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 not a de Polignac number, because 77953035977 - 2¹⁰ = 77953034953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77953035907) 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, 1336799 + ... + 1393892.

It is an arithmetic number, because the mean of its divisors is an integer number (19488948804).

Almost surely, 2^77953035977 is an apocalyptic number.

It is an amenable number.

77953035977 is a deficient number, since it is larger than the sum of its proper divisors (2759239).

77953035977 is a wasteful number, since it uses less digits than its factorization.

77953035977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759238.

The product of its (nonzero) digits is 43758225, while the sum is 62.

The spelling of 77953035977 in words is "seventy-seven billion, nine hundred fifty-three million, thirty-five thousand, nine hundred seventy-seven".