26729009802 has 32 divisors (see below), whose sum is σ = 64797600960. Its totient is φ = 8099699760.

The previous prime is 26729009773. The next prime is 26729009807. The reversal of 26729009802 is 20890092762.

It is not an unprimeable number, because it can be changed into a prime (26729009807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22498573 + ... + 22499760.

It is an arithmetic number, because the mean of its divisors is an integer number (2024925030).

Almost surely, 2^26729009802 is an apocalyptic number.

26729009802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26729009802 is an abundant number, since it is smaller than the sum of its proper divisors (38068591158).

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

26729009802 is a wasteful number, since it uses less digits than its factorization.

26729009802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44998355 (or 44998349 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 26729009802 in words is "twenty-six billion, seven hundred twenty-nine million, nine thousand, eight hundred two".