79839588487 has 2 divisors, whose sum is σ = 79839588488. Its totient is φ = 79839588486.

The previous prime is 79839588469. The next prime is 79839588497. The reversal of 79839588487 is 78488593897.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79839588487 - 2¹⁹ = 79839064199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79839588407) 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, 39919794243 + 39919794244.

It is an arithmetic number, because the mean of its divisors is an integer number (39919794244).

Almost surely, 2^79839588487 is an apocalyptic number.

79839588487 is a deficient number, since it is larger than the sum of its proper divisors (1).

79839588487 is an equidigital number, since it uses as much as digits as its factorization.

79839588487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 975421440, while the sum is 76.

The spelling of 79839588487 in words is "seventy-nine billion, eight hundred thirty-nine million, five hundred eighty-eight thousand, four hundred eighty-seven".