77199091201 has 2 divisors, whose sum is σ = 77199091202. Its totient is φ = 77199091200.

The previous prime is 77199091171. The next prime is 77199091213. The reversal of 77199091201 is 10219099177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75171930625 + 2027160576 = 274175^2 + 45024^2 .

It is a cyclic number.

It is not a de Polignac number, because 77199091201 - 2³⁵ = 42839352833 is a prime.

It is not a weakly prime, because it can be changed into another prime (77199091261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38599545600 + 38599545601.

It is an arithmetic number, because the mean of its divisors is an integer number (38599545601).

Almost surely, 2^77199091201 is an apocalyptic number.

It is an amenable number.

77199091201 is a deficient number, since it is larger than the sum of its proper divisors (1).

77199091201 is an equidigital number, since it uses as much as digits as its factorization.

77199091201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 46.

The spelling of 77199091201 in words is "seventy-seven billion, one hundred ninety-nine million, ninety-one thousand, two hundred one".