79223790533 has 2 divisors, whose sum is σ = 79223790534. Its totient is φ = 79223790532.

The previous prime is 79223790523. The next prime is 79223790539. The reversal of 79223790533 is 33509732297.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75621150049 + 3602640484 = 274993^2 + 60022^2 .

It is a cyclic number.

It is not a de Polignac number, because 79223790533 - 2⁴ = 79223790517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79223790539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39611895266 + 39611895267.

It is an arithmetic number, because the mean of its divisors is an integer number (39611895267).

Almost surely, 2^79223790533 is an apocalyptic number.

It is an amenable number.

79223790533 is a deficient number, since it is larger than the sum of its proper divisors (1).

79223790533 is an equidigital number, since it uses as much as digits as its factorization.

79223790533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2143260, while the sum is 50.

The spelling of 79223790533 in words is "seventy-nine billion, two hundred twenty-three million, seven hundred ninety thousand, five hundred thirty-three".