86612400723437 has 4 divisors (see below), whose sum is σ = 86626332272316. Its totient is φ = 86598469174560.

The previous prime is 86612400723383. The next prime is 86612400723449. The reversal of 86612400723437 is 73432700421668.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69875906990761 + 16736493732676 = 8359181^2 + 4091026^2 .

It is a cyclic number.

It is not a de Polignac number, because 86612400723437 - 2¹⁰ = 86612400722413 is a prime.

It is a super-2 number, since 2×86612400723437² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86612400713437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6965765114 + ... + 6965777547.

It is an arithmetic number, because the mean of its divisors is an integer number (21656583068079).

Almost surely, 2^{86612400723437} is an apocalyptic number.

It is an amenable number.

86612400723437 is a deficient number, since it is larger than the sum of its proper divisors (13931548879).

86612400723437 is a wasteful number, since it uses less digits than its factorization.

86612400723437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13931548878.

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 86612400723437 in words is "eighty-six trillion, six hundred twelve billion, four hundred million, seven hundred twenty-three thousand, four hundred thirty-seven".