79051224977 has 2 divisors, whose sum is σ = 79051224978. Its totient is φ = 79051224976.

The previous prime is 79051224949. The next prime is 79051225007. The reversal of 79051224977 is 77942215097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70538579281 + 8512645696 = 265591^2 + 92264^2 .

It is an emirp because it is prime and its reverse (77942215097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79051224977 - 2²⁸ = 78782789521 is a prime.

It is not a weakly prime, because it can be changed into another prime (79051224907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39525612488 + 39525612489.

It is an arithmetic number, because the mean of its divisors is an integer number (39525612489).

Almost surely, 2^79051224977 is an apocalyptic number.

It is an amenable number.

79051224977 is a deficient number, since it is larger than the sum of its proper divisors (1).

79051224977 is an equidigital number, since it uses as much as digits as its factorization.

79051224977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 79051224977 in words is "seventy-nine billion, fifty-one million, two hundred twenty-four thousand, nine hundred seventy-seven".