84868490863 has 32 divisors (see below), whose sum is σ = 96982200000. Its totient is φ = 73620513792.

The previous prime is 84868490821. The next prime is 84868490869. The reversal of 84868490863 is 36809486848.

It is a de Polignac number, because none of the positive numbers 2^k-84868490863 is a prime.

It is a super-2 number, since 2×84868490863² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84868490795 and 84868490804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84868490869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47438173 + ... + 47439961.

It is an arithmetic number, because the mean of its divisors is an integer number (3030693750).

Almost surely, 2^84868490863 is an apocalyptic number.

84868490863 is a deficient number, since it is larger than the sum of its proper divisors (12113709137).

84868490863 is a wasteful number, since it uses less digits than its factorization.

84868490863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259.

The product of its (nonzero) digits is 63700992, while the sum is 64.

The spelling of 84868490863 in words is "eighty-four billion, eight hundred sixty-eight million, four hundred ninety thousand, eight hundred sixty-three".