6912870136536 has 512 divisors, whose sum is σ = 23676007219200. Its totient is φ = 1630720512000.

The previous prime is 6912870136531. The next prime is 6912870136553. The reversal of 6912870136536 is 6356310782196.

It is a super-2 number, since 2×6912870136536² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6912870136531) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 52675881 + ... + 52806951.

It is an arithmetic number, because the mean of its divisors is an integer number (46242201600).

Almost surely, 2^{6912870136536} 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 6912870136536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11838003609600).

6912870136536 is an abundant number, since it is smaller than the sum of its proper divisors (16763137082664).

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

6912870136536 is a wasteful number, since it uses less digits than its factorization.

6912870136536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131191 (or 131187 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 6912870136536 in words is "six trillion, nine hundred twelve billion, eight hundred seventy million, one hundred thirty-six thousand, five hundred thirty-six".