98378653881331 has 2 divisors, whose sum is σ = 98378653881332. Its totient is φ = 98378653881330.

The previous prime is 98378653881197. The next prime is 98378653881349. The reversal of 98378653881331 is 13318835687389.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 98378653881331 - 2¹⁷ = 98378653750259 is a prime.

It is a super-2 number, since 2×98378653881331² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98378653881031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49189326940665 + 49189326940666.

It is an arithmetic number, because the mean of its divisors is an integer number (49189326940666).

Almost surely, 2^{98378653881331} is an apocalyptic number.

98378653881331 is a deficient number, since it is larger than the sum of its proper divisors (1).

98378653881331 is an equidigital number, since it uses as much as digits as its factorization.

98378653881331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 627056640, while the sum is 73.

The spelling of 98378653881331 in words is "ninety-eight trillion, three hundred seventy-eight billion, six hundred fifty-three million, eight hundred eighty-one thousand, three hundred thirty-one".