87109408339 has 2 divisors, whose sum is σ = 87109408340. Its totient is φ = 87109408338.

The previous prime is 87109408313. The next prime is 87109408343. The reversal of 87109408339 is 93380490178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87109408339 is a prime.

It is not a weakly prime, because it can be changed into another prime (87109408369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43554704169 + 43554704170.

It is an arithmetic number, because the mean of its divisors is an integer number (43554704170).

Almost surely, 2^87109408339 is an apocalyptic number.

87109408339 is a deficient number, since it is larger than the sum of its proper divisors (1).

87109408339 is an equidigital number, since it uses as much as digits as its factorization.

87109408339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 87109408339 in words is "eighty-seven billion, one hundred nine million, four hundred eight thousand, three hundred thirty-nine".