98857763491 has 2 divisors, whose sum is σ = 98857763492. Its totient is φ = 98857763490.

The previous prime is 98857763489. The next prime is 98857763533. The reversal of 98857763491 is 19436775889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98857763491 - 2¹ = 98857763489 is a prime.

Together with 98857763489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (98857763461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49428881745 + 49428881746.

It is an arithmetic number, because the mean of its divisors is an integer number (49428881746).

Almost surely, 2^98857763491 is an apocalyptic number.

98857763491 is a deficient number, since it is larger than the sum of its proper divisors (1).

98857763491 is an equidigital number, since it uses as much as digits as its factorization.

98857763491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91445760, while the sum is 67.

The spelling of 98857763491 in words is "ninety-eight billion, eight hundred fifty-seven million, seven hundred sixty-three thousand, four hundred ninety-one".