26690419560 has 384 divisors, whose sum is σ = 99842440320. Its totient is φ = 5670862848.

The previous prime is 26690419541. The next prime is 26690419571. The reversal of 26690419560 is 6591409662.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8295072 + ... + 8298288.

It is an arithmetic number, because the mean of its divisors is an integer number (260006355).

Almost surely, 2^26690419560 is an apocalyptic number.

26690419560 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 26690419560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49921220160).

26690419560 is an abundant number, since it is smaller than the sum of its proper divisors (73152020760).

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

26690419560 is a wasteful number, since it uses less digits than its factorization.

26690419560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3334 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 26690419560 in words is "twenty-six billion, six hundred ninety million, four hundred nineteen thousand, five hundred sixty".