867649226136 has 384 divisors, whose sum is σ = 2902903660800. Its totient is φ = 213106360320.

The previous prime is 867649226113. The next prime is 867649226137. The reversal of 867649226136 is 631622946768.

It is a super-2 number, since 2×867649226136² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 867649226136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867649226137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 145746936 + ... + 145752888.

It is an arithmetic number, because the mean of its divisors is an integer number (7559644950).

Almost surely, 2^867649226136 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 867649226136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451451830400).

867649226136 is an abundant number, since it is smaller than the sum of its proper divisors (2035254434664).

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

867649226136 is a wasteful number, since it uses less digits than its factorization.

867649226136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6599 (or 6588 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 60.

The spelling of 867649226136 in words is "eight hundred sixty-seven billion, six hundred forty-nine million, two hundred twenty-six thousand, one hundred thirty-six".