89018949839 has 2 divisors, whose sum is σ = 89018949840. Its totient is φ = 89018949838.

The previous prime is 89018949809. The next prime is 89018949857. The reversal of 89018949839 is 93894981098.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89018949839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89018949809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44509474919 + 44509474920.

It is an arithmetic number, because the mean of its divisors is an integer number (44509474920).

Almost surely, 2^89018949839 is an apocalyptic number.

89018949839 is a deficient number, since it is larger than the sum of its proper divisors (1).

89018949839 is an equidigital number, since it uses as much as digits as its factorization.

89018949839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40310784, while the sum is 68.

The spelling of 89018949839 in words is "eighty-nine billion, eighteen million, nine hundred forty-nine thousand, eight hundred thirty-nine".