87826613044 has 12 divisors (see below), whose sum is σ = 154728094500. Its totient is φ = 43618586048.

The previous prime is 87826613029. The next prime is 87826613047. The reversal of 87826613044 is 44031662878.

It can be written as a sum of positive squares in 2 ways, for example, as 4312548900 + 83514064144 = 65670^2 + 288988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87826613047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73679449 + ... + 73680640.

It is an arithmetic number, because the mean of its divisors is an integer number (12894007875).

Almost surely, 2^87826613044 is an apocalyptic number.

It is an amenable number.

87826613044 is a deficient number, since it is larger than the sum of its proper divisors (66901481456).

87826613044 is a wasteful number, since it uses less digits than its factorization.

87826613044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147360242 (or 147360240 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 87826613044 in words is "eighty-seven billion, eight hundred twenty-six million, six hundred thirteen thousand, forty-four".