2861126386536 has 96 divisors (see below), whose sum is σ = 7866768268800. Its totient is φ = 866502700800.

The previous prime is 2861126386519. The next prime is 2861126386583. The reversal of 2861126386536 is 6356836211682.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4711545 + ... + 5284023.

It is an arithmetic number, because the mean of its divisors is an integer number (81945502800).

Almost surely, 2^{2861126386536} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2861126386536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3933384134400).

2861126386536 is an abundant number, since it is smaller than the sum of its proper divisors (5005641882264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2861126386536 is a wasteful number, since it uses less digits than its factorization.

2861126386536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574231 (or 574216 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 2861126386536 in words is "two trillion, eight hundred sixty-one billion, one hundred twenty-six million, three hundred eighty-six thousand, five hundred thirty-six".