104387617863 has 40 divisors (see below), whose sum is σ = 162907987968. Its totient is φ = 66487859856.

The previous prime is 104387617847. The next prime is 104387617879. The reversal of 104387617863 is 368716783401.

104387617863 is a `hidden beast` number, since 10 + 4 + 3 + 8 + 7 + 617 + 8 + 6 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (104387617847) and next prime (104387617879).

It is not a de Polignac number, because 104387617863 - 2⁴ = 104387617847 is a prime.

It is a super-2 number, since 2×104387617863² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104387617823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1575306 + ... + 1640232.

Almost surely, 2^104387617863 is an apocalyptic number.

104387617863 is a deficient number, since it is larger than the sum of its proper divisors (58520370105).

104387617863 is an equidigital number, since it uses as much as digits as its factorization.

104387617863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65825 (or 65816 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 104387617863 in words is "one hundred four billion, three hundred eighty-seven million, six hundred seventeen thousand, eight hundred sixty-three".