78826052719 has 2 divisors, whose sum is σ = 78826052720. Its totient is φ = 78826052718.

The previous prime is 78826052713. The next prime is 78826052803. The reversal of 78826052719 is 91725062887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78826052719 - 2³⁵ = 44466314351 is a prime.

It is a super-2 number, since 2×78826052719² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78826052719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78826052713) 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, 39413026359 + 39413026360.

It is an arithmetic number, because the mean of its divisors is an integer number (39413026360).

Almost surely, 2^78826052719 is an apocalyptic number.

78826052719 is a deficient number, since it is larger than the sum of its proper divisors (1).

78826052719 is an equidigital number, since it uses as much as digits as its factorization.

78826052719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 78826052719 in words is "seventy-eight billion, eight hundred twenty-six million, fifty-two thousand, seven hundred nineteen".