86217444453 has 32 divisors (see below), whose sum is σ = 133364431872. Its totient is φ = 48526156800.

The previous prime is 86217444449. The next prime is 86217444457. The reversal of 86217444453 is 35444471268.

It is an interprime number because it is at equal distance from previous prime (86217444449) and next prime (86217444457).

It is not a de Polignac number, because 86217444453 - 2² = 86217444449 is a prime.

It is a super-2 number, since 2×86217444453² (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 (86217444457) 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, 502213 + ... + 651653.

It is an arithmetic number, because the mean of its divisors is an integer number (4167638496).

Almost surely, 2^86217444453 is an apocalyptic number.

86217444453 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

86217444453 is a deficient number, since it is larger than the sum of its proper divisors (47146987419).

86217444453 is a wasteful number, since it uses less digits than its factorization.

86217444453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149865.

The product of its digits is 2580480, while the sum is 48.

The spelling of 86217444453 in words is "eighty-six billion, two hundred seventeen million, four hundred forty-four thousand, four hundred fifty-three".