98581912837 has 2 divisors, whose sum is σ = 98581912838. Its totient is φ = 98581912836.

The previous prime is 98581912801. The next prime is 98581912841. The reversal of 98581912837 is 73821918589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70841677921 + 27740234916 = 266161^2 + 166554^2 .

It is an emirp because it is prime and its reverse (73821918589) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98581912837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98581912337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49290956418 + 49290956419.

It is an arithmetic number, because the mean of its divisors is an integer number (49290956419).

Almost surely, 2^98581912837 is an apocalyptic number.

It is an amenable number.

98581912837 is a deficient number, since it is larger than the sum of its proper divisors (1).

98581912837 is an equidigital number, since it uses as much as digits as its factorization.

98581912837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 61.

The spelling of 98581912837 in words is "ninety-eight billion, five hundred eighty-one million, nine hundred twelve thousand, eight hundred thirty-seven".