26789669500 has 72 divisors (see below), whose sum is σ = 63856538928. Its totient is φ = 9737284000.

The previous prime is 26789669461. The next prime is 26789669527. The reversal of 26789669500 is 596698762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12137397 + ... + 12139603.

It is an arithmetic number, because the mean of its divisors is an integer number (886896374).

Almost surely, 2^26789669500 is an apocalyptic number.

26789669500 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 26789669500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31928269464).

26789669500 is an abundant number, since it is smaller than the sum of its proper divisors (37066869428).

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

26789669500 is an equidigital number, since it uses as much as digits as its factorization.

26789669500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444 (or 2225 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 26789669500 in words is "twenty-six billion, seven hundred eighty-nine million, six hundred sixty-nine thousand, five hundred".