78834500651 has 2 divisors, whose sum is σ = 78834500652. Its totient is φ = 78834500650.

The previous prime is 78834500629. The next prime is 78834500671. The reversal of 78834500651 is 15600543887.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78834500651 - 2¹⁸ = 78834238507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78834500596 and 78834500605.

It is not a weakly prime, because it can be changed into another prime (78834500621) 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, 39417250325 + 39417250326.

It is an arithmetic number, because the mean of its divisors is an integer number (39417250326).

Almost surely, 2^78834500651 is an apocalyptic number.

78834500651 is a deficient number, since it is larger than the sum of its proper divisors (1).

78834500651 is an equidigital number, since it uses as much as digits as its factorization.

78834500651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 78834500651 in words is "seventy-eight billion, eight hundred thirty-four million, five hundred thousand, six hundred fifty-one".