76728868621759 has 2 divisors, whose sum is σ = 76728868621760. Its totient is φ = 76728868621758.

The previous prime is 76728868621679. The next prime is 76728868621787. The reversal of 76728868621759 is 95712686882767.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76728868621759 - 2¹³ = 76728868613567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76728868621799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38364434310879 + 38364434310880.

It is an arithmetic number, because the mean of its divisors is an integer number (38364434310880).

Almost surely, 2^{76728868621759} is an apocalyptic number.

76728868621759 is a deficient number, since it is larger than the sum of its proper divisors (1).

76728868621759 is an equidigital number, since it uses as much as digits as its factorization.

76728868621759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6827950080, while the sum is 82.

The spelling of 76728868621759 in words is "seventy-six trillion, seven hundred twenty-eight billion, eight hundred sixty-eight million, six hundred twenty-one thousand, seven hundred fifty-nine".