86502144373 has 2 divisors, whose sum is σ = 86502144374. Its totient is φ = 86502144372.

The previous prime is 86502144349. The next prime is 86502144409. The reversal of 86502144373 is 37344120568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83660934564 + 2841209809 = 289242^2 + 53303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86502144373 is a prime.

It is a super-2 number, since 2×86502144373² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86502141373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43251072186 + 43251072187.

It is an arithmetic number, because the mean of its divisors is an integer number (43251072187).

Almost surely, 2^86502144373 is an apocalyptic number.

It is an amenable number.

86502144373 is a deficient number, since it is larger than the sum of its proper divisors (1).

86502144373 is an equidigital number, since it uses as much as digits as its factorization.

86502144373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 86502144373 in words is "eighty-six billion, five hundred two million, one hundred forty-four thousand, three hundred seventy-three".