98778562642365 has 64 divisors (see below), whose sum is σ = 169469706470400. Its totient is φ = 48952749441024.

The previous prime is 98778562642327. The next prime is 98778562642393. The reversal of 98778562642365 is 56324626587789.

It is not a de Polignac number, because 98778562642365 - 2⁷ = 98778562642237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 414726931 + ... + 414965039.

It is an arithmetic number, because the mean of its divisors is an integer number (2647964163600).

Almost surely, 2^{98778562642365} is an apocalyptic number.

It is an amenable number.

98778562642365 is a deficient number, since it is larger than the sum of its proper divisors (70691143828035).

98778562642365 is a wasteful number, since it uses less digits than its factorization.

98778562642365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258806.

The product of its digits is 7315660800, while the sum is 78.

The spelling of 98778562642365 in words is "ninety-eight trillion, seven hundred seventy-eight billion, five hundred sixty-two million, six hundred forty-two thousand, three hundred sixty-five".