26012183680 has 128 divisors (see below), whose sum is σ = 71304266880. Its totient is φ = 8888942592.

The previous prime is 26012183677. The next prime is 26012183723. The reversal of 26012183680 is 8638121062.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365904 + ... + 1384816.

It is an arithmetic number, because the mean of its divisors is an integer number (557064585).

Almost surely, 2^26012183680 is an apocalyptic number.

26012183680 is a gapful number since it is divisible by the number (20) 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 26012183680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35652133440).

26012183680 is an abundant number, since it is smaller than the sum of its proper divisors (45292083200).

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

26012183680 is a wasteful number, since it uses less digits than its factorization.

26012183680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19246 (or 19234 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 26012183680 in words is "twenty-six billion, twelve million, one hundred eighty-three thousand, six hundred eighty".