76799039455321 has 2 divisors, whose sum is σ = 76799039455322. Its totient is φ = 76799039455320.

The previous prime is 76799039455283. The next prime is 76799039455367. The reversal of 76799039455321 is 12355493099767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76362937710921 + 436101744400 = 8738589^2 + 660380^2 .

It is a cyclic number.

It is not a de Polignac number, because 76799039455321 - 2¹³ = 76799039447129 is a prime.

It is a super-2 number, since 2×76799039455321² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76799039455381) 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, 38399519727660 + 38399519727661.

It is an arithmetic number, because the mean of its divisors is an integer number (38399519727661).

Almost surely, 2^{76799039455321} is an apocalyptic number.

It is an amenable number.

76799039455321 is a deficient number, since it is larger than the sum of its proper divisors (1).

76799039455321 is an equidigital number, since it uses as much as digits as its factorization.

76799039455321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 385786800, while the sum is 70.

The spelling of 76799039455321 in words is "seventy-six trillion, seven hundred ninety-nine billion, thirty-nine million, four hundred fifty-five thousand, three hundred twenty-one".