79894000787 has 2 divisors, whose sum is σ = 79894000788. Its totient is φ = 79894000786.

The previous prime is 79894000777. The next prime is 79894000829. The reversal of 79894000787 is 78700049897.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79894000787 - 2³⁶ = 11174524051 is a prime.

It is not a weakly prime, because it can be changed into another prime (79894000727) 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, 39947000393 + 39947000394.

It is an arithmetic number, because the mean of its divisors is an integer number (39947000394).

Almost surely, 2^79894000787 is an apocalyptic number.

79894000787 is a deficient number, since it is larger than the sum of its proper divisors (1).

79894000787 is an equidigital number, since it uses as much as digits as its factorization.

79894000787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The spelling of 79894000787 in words is "seventy-nine billion, eight hundred ninety-four million, seven hundred eighty-seven", and thus it is an aban number.