77955633111 has 12 divisors (see below), whose sum is σ = 106754084456. Its totient is φ = 50563908000.

The previous prime is 77955633101. The next prime is 77955633113. The reversal of 77955633111 is 11133655977.

It is not a de Polignac number, because 77955633111 - 2⁵ = 77955633079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77955633113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2928361 + ... + 2954861.

Almost surely, 2^77955633111 is an apocalyptic number.

77955633111 is a deficient number, since it is larger than the sum of its proper divisors (28798451345).

77955633111 is an frugal number, since it uses more digits than its factorization.

77955633111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53042 (or 26541 counting only the distinct ones).

The product of its digits is 595350, while the sum is 48.

The spelling of 77955633111 in words is "seventy-seven billion, nine hundred fifty-five million, six hundred thirty-three thousand, one hundred eleven".