77100772207 has 2 divisors, whose sum is σ = 77100772208. Its totient is φ = 77100772206.

The previous prime is 77100772121. The next prime is 77100772211. The reversal of 77100772207 is 70227700177.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77100772207 - 2⁷ = 77100772079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77100772207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77100772237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38550386103 + 38550386104.

It is an arithmetic number, because the mean of its divisors is an integer number (38550386104).

Almost surely, 2^77100772207 is an apocalyptic number.

77100772207 is a deficient number, since it is larger than the sum of its proper divisors (1).

77100772207 is an equidigital number, since it uses as much as digits as its factorization.

77100772207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67228, while the sum is 40.

The spelling of 77100772207 in words is "seventy-seven billion, one hundred million, seven hundred seventy-two thousand, two hundred seven".