83812076586861 has 24 divisors (see below), whose sum is σ = 131639737979520. Its totient is φ = 47286379550592.

The previous prime is 83812076586743. The next prime is 83812076586911. The reversal of 83812076586861 is 16868567021838.

It is not a de Polignac number, because 83812076586861 - 2³¹ = 83809929103213 is a prime.

It is a super-2 number, since 2×83812076586861² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83812076588861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3608533836 + ... + 3608557061.

It is an arithmetic number, because the mean of its divisors is an integer number (5484989082480).

Almost surely, 2^{83812076586861} is an apocalyptic number.

It is an amenable number.

83812076586861 is a deficient number, since it is larger than the sum of its proper divisors (47827661392659).

83812076586861 is a wasteful number, since it uses less digits than its factorization.

83812076586861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7217090993 (or 7217090986 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 69.

The spelling of 83812076586861 in words is "eighty-three trillion, eight hundred twelve billion, seventy-six million, five hundred eighty-six thousand, eight hundred sixty-one".