77000072111 has 2 divisors, whose sum is σ = 77000072112. Its totient is φ = 77000072110.

The previous prime is 77000072089. The next prime is 77000072117. The reversal of 77000072111 is 11127000077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77000072111 - 2²² = 76995877807 is a prime.

It is a super-2 number, since 2×77000072111² (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 (77000072117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38500036055 + 38500036056.

It is an arithmetic number, because the mean of its divisors is an integer number (38500036056).

Almost surely, 2^77000072111 is an apocalyptic number.

77000072111 is a deficient number, since it is larger than the sum of its proper divisors (1).

77000072111 is an equidigital number, since it uses as much as digits as its factorization.

77000072111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 686, while the sum is 26.

Adding to 77000072111 its reverse (11127000077), we get a palindrome (88127072188).

The spelling of 77000072111 in words is "seventy-seven billion, seventy-two thousand, one hundred eleven".