79091787403 has 2 divisors, whose sum is σ = 79091787404. Its totient is φ = 79091787402.

The previous prime is 79091787367. The next prime is 79091787443. The reversal of 79091787403 is 30478719097.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79091787403 is a prime.

It is a super-3 number, since 3×79091787403³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (79091787443) 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, 39545893701 + 39545893702.

It is an arithmetic number, because the mean of its divisors is an integer number (39545893702).

Almost surely, 2^79091787403 is an apocalyptic number.

79091787403 is a deficient number, since it is larger than the sum of its proper divisors (1).

79091787403 is an equidigital number, since it uses as much as digits as its factorization.

79091787403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The spelling of 79091787403 in words is "seventy-nine billion, ninety-one million, seven hundred eighty-seven thousand, four hundred three".