98947158689 has 2 divisors, whose sum is σ = 98947158690. Its totient is φ = 98947158688.

The previous prime is 98947158631. The next prime is 98947158727. The reversal of 98947158689 is 98685174989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97489446289 + 1457712400 = 312233^2 + 38180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98947158689 is a prime.

It is a super-2 number, since 2×98947158689² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98947154689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49473579344 + 49473579345.

It is an arithmetic number, because the mean of its divisors is an integer number (49473579345).

Almost surely, 2^98947158689 is an apocalyptic number.

It is an amenable number.

98947158689 is a deficient number, since it is larger than the sum of its proper divisors (1).

98947158689 is an equidigital number, since it uses as much as digits as its factorization.

98947158689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313528320, while the sum is 74.

The spelling of 98947158689 in words is "ninety-eight billion, nine hundred forty-seven million, one hundred fifty-eight thousand, six hundred eighty-nine".