79721300296433 has 2 divisors, whose sum is σ = 79721300296434. Its totient is φ = 79721300296432.

The previous prime is 79721300296373. The next prime is 79721300296489. The reversal of 79721300296433 is 33469200312797.

It is an a-pointer prime, because the next prime (79721300296489) can be obtained adding 79721300296433 to its sum of digits (56).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77690527093729 + 2030773202704 = 8814223^2 + 1425052^2 .

It is a cyclic number.

It is not a de Polignac number, because 79721300296433 - 2²⁴ = 79721283519217 is a prime.

It is not a weakly prime, because it can be changed into another prime (79721300296633) 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, 39860650148216 + 39860650148217.

It is an arithmetic number, because the mean of its divisors is an integer number (39860650148217).

Almost surely, 2^{79721300296433} is an apocalyptic number.

It is an amenable number.

79721300296433 is a deficient number, since it is larger than the sum of its proper divisors (1).

79721300296433 is an equidigital number, since it uses as much as digits as its factorization.

79721300296433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 56.

The spelling of 79721300296433 in words is "seventy-nine trillion, seven hundred twenty-one billion, three hundred million, two hundred ninety-six thousand, four hundred thirty-three".