98677988257 has 2 divisors, whose sum is σ = 98677988258. Its totient is φ = 98677988256.

The previous prime is 98677988239. The next prime is 98677988267. The reversal of 98677988257 is 75288977689.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67106384401 + 31571603856 = 259049^2 + 177684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98677988257 is a prime.

It is not a weakly prime, because it can be changed into another prime (98677988267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49338994128 + 49338994129.

It is an arithmetic number, because the mean of its divisors is an integer number (49338994129).

Almost surely, 2^98677988257 is an apocalyptic number.

It is an amenable number.

98677988257 is a deficient number, since it is larger than the sum of its proper divisors (1).

98677988257 is an equidigital number, since it uses as much as digits as its factorization.

98677988257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 853493760, while the sum is 76.

The spelling of 98677988257 in words is "ninety-eight billion, six hundred seventy-seven million, nine hundred eighty-eight thousand, two hundred fifty-seven".