26934541816 has 256 divisors, whose sum is σ = 68584320000. Its totient is φ = 9617190912.

The previous prime is 26934541783. The next prime is 26934541819. The reversal of 26934541816 is 61814543962.

It is a self number, because there is not a number n which added to its sum of digits gives 26934541816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26934541819) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33293220 + ... + 33294028.

It is an arithmetic number, because the mean of its divisors is an integer number (267907500).

Almost surely, 2^26934541816 is an apocalyptic number.

26934541816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26934541816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34292160000).

26934541816 is an abundant number, since it is smaller than the sum of its proper divisors (41649778184).

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

26934541816 is a wasteful number, since it uses less digits than its factorization.

26934541816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 962 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The spelling of 26934541816 in words is "twenty-six billion, nine hundred thirty-four million, five hundred forty-one thousand, eight hundred sixteen".