77739270079 has 2 divisors, whose sum is σ = 77739270080. Its totient is φ = 77739270078.

The previous prime is 77739270017. The next prime is 77739270107. The reversal of 77739270079 is 97007293777.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77739270079 - 2²⁹ = 77202399167 is a prime.

It is a super-2 number, since 2×77739270079² (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 (77739270779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38869635039 + 38869635040.

It is an arithmetic number, because the mean of its divisors is an integer number (38869635040).

Almost surely, 2^77739270079 is an apocalyptic number.

77739270079 is a deficient number, since it is larger than the sum of its proper divisors (1).

77739270079 is an equidigital number, since it uses as much as digits as its factorization.

77739270079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8168202, while the sum is 58.

The spelling of 77739270079 in words is "seventy-seven billion, seven hundred thirty-nine million, two hundred seventy thousand, seventy-nine".