79405050497 has 2 divisors, whose sum is σ = 79405050498. Its totient is φ = 79405050496.

The previous prime is 79405050493. The next prime is 79405050547.

79405050497 is nontrivially palindromic in base 10.

It is an a-pointer prime, because the next prime (79405050547) can be obtained adding 79405050497 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49849939441 + 29555111056 = 223271^2 + 171916^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 79405050497 - 2² = 79405050493 is a prime.

It is a super-2 number, since 2×79405050497² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79405050493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39702525248 + 39702525249.

It is an arithmetic number, because the mean of its divisors is an integer number (39702525249).

Almost surely, 2^79405050497 is an apocalyptic number.

It is an amenable number.

79405050497 is a deficient number, since it is larger than the sum of its proper divisors (1).

79405050497 is an equidigital number, since it uses as much as digits as its factorization.

79405050497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 79405050497 in words is "seventy-nine billion, four hundred five million, fifty thousand, four hundred ninety-seven".