26558904680 has 384 divisors, whose sum is σ = 77800020480. Its totient is φ = 7983360000.

The previous prime is 26558904679. The next prime is 26558904703. The reversal of 26558904680 is 8640985562.

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, 146734190 + ... + 146734370.

It is an arithmetic number, because the mean of its divisors is an integer number (202604220).

Almost surely, 2^26558904680 is an apocalyptic number.

26558904680 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 26558904680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38900010240).

26558904680 is an abundant number, since it is smaller than the sum of its proper divisors (51241115800).

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

26558904680 is a wasteful number, since it uses less digits than its factorization.

26558904680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 26558904680 in words is "twenty-six billion, five hundred fifty-eight million, nine hundred four thousand, six hundred eighty".