26709346608 has 160 divisors (see below), whose sum is σ = 83116108800. Its totient is φ = 7228935168.

The previous prime is 26709346607. The next prime is 26709346679. The reversal of 26709346608 is 80664390762.

It is a happy number.

It is a super-2 number, since 2×26709346608² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26709346607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490573 + ... + 542291.

It is an arithmetic number, because the mean of its divisors is an integer number (519475680).

Almost surely, 2^26709346608 is an apocalyptic number.

26709346608 is a gapful number since it is divisible by the number (28) 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 26709346608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41558054400).

26709346608 is an abundant number, since it is smaller than the sum of its proper divisors (56406762192).

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

26709346608 is a wasteful number, since it uses less digits than its factorization.

26709346608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51819 (or 51813 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 26709346608 in words is "twenty-six billion, seven hundred nine million, three hundred forty-six thousand, six hundred eight".