86530005944 has 8 divisors (see below), whose sum is σ = 162243761160. Its totient is φ = 43265002968.

The previous prime is 86530005943. The next prime is 86530005977. The reversal of 86530005944 is 44950003568.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×86530005944² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86530005895 and 86530005904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86530005943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5408125364 + ... + 5408125379.

It is an arithmetic number, because the mean of its divisors is an integer number (20280470145).

Almost surely, 2^86530005944 is an apocalyptic number.

It is an amenable number.

86530005944 is a deficient number, since it is larger than the sum of its proper divisors (75713755216).

86530005944 is a wasteful number, since it uses less digits than its factorization.

86530005944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816250749 (or 10816250745 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 86530005944 in words is "eighty-six billion, five hundred thirty million, five thousand, nine hundred forty-four".