77667670111 has 2 divisors, whose sum is σ = 77667670112. Its totient is φ = 77667670110.

The previous prime is 77667670057. The next prime is 77667670169. The reversal of 77667670111 is 11107676677.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77667670111 - 2¹¹ = 77667668063 is a prime.

It is a super-2 number, since 2×77667670111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77667670811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38833835055 + 38833835056.

It is an arithmetic number, because the mean of its divisors is an integer number (38833835056).

Almost surely, 2^77667670111 is an apocalyptic number.

77667670111 is a deficient number, since it is larger than the sum of its proper divisors (1).

77667670111 is an equidigital number, since it uses as much as digits as its factorization.

77667670111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518616, while the sum is 49.

The spelling of 77667670111 in words is "seventy-seven billion, six hundred sixty-seven million, six hundred seventy thousand, one hundred eleven".