77396147099 has 2 divisors, whose sum is σ = 77396147100. Its totient is φ = 77396147098.

The previous prime is 77396146969. The next prime is 77396147201. The reversal of 77396147099 is 99074169377.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77396147099 - 2⁸ = 77396146843 is a prime.

It is a super-2 number, since 2×77396147099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77396147399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38698073549 + 38698073550.

It is an arithmetic number, because the mean of its divisors is an integer number (38698073550).

Almost surely, 2^77396147099 is an apocalyptic number.

77396147099 is a deficient number, since it is larger than the sum of its proper divisors (1).

77396147099 is an equidigital number, since it uses as much as digits as its factorization.

77396147099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 77396147099 in words is "seventy-seven billion, three hundred ninety-six million, one hundred forty-seven thousand, ninety-nine".