77027172111 has 24 divisors (see below), whose sum is σ = 111974282784. Its totient is φ = 51023462400.

The previous prime is 77027172083. The next prime is 77027172121. The reversal of 77027172111 is 11127172077.

It is a happy number.

It is not a de Polignac number, because 77027172111 - 2¹¹ = 77027170063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77027172121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 885990 + ... + 969036.

It is an arithmetic number, because the mean of its divisors is an integer number (4665595116).

Almost surely, 2^77027172111 is an apocalyptic number.

77027172111 is a deficient number, since it is larger than the sum of its proper divisors (34947110673).

77027172111 is a wasteful number, since it uses less digits than its factorization.

77027172111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83711 (or 83708 counting only the distinct ones).

The product of its (nonzero) digits is 9604, while the sum is 36.

The spelling of 77027172111 in words is "seventy-seven billion, twenty-seven million, one hundred seventy-two thousand, one hundred eleven".