79051240469 has 2 divisors, whose sum is σ = 79051240470. Its totient is φ = 79051240468.

The previous prime is 79051240451. The next prime is 79051240501. The reversal of 79051240469 is 96404215097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78029159569 + 1022080900 = 279337^2 + 31970^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79051240469 is a prime.

It is a super-2 number, since 2×79051240469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79051240409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39525620234 + 39525620235.

It is an arithmetic number, because the mean of its divisors is an integer number (39525620235).

Almost surely, 2^79051240469 is an apocalyptic number.

It is an amenable number.

79051240469 is a deficient number, since it is larger than the sum of its proper divisors (1).

79051240469 is an equidigital number, since it uses as much as digits as its factorization.

79051240469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 79051240469 in words is "seventy-nine billion, fifty-one million, two hundred forty thousand, four hundred sixty-nine".