26691462560 has 192 divisors, whose sum is σ = 75235184640. Its totient is φ = 8757227520.

The previous prime is 26691462559. The next prime is 26691462571. The reversal of 26691462560 is 6526419662.

It is a super-4 number, since 4×26691462560⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2522561 + ... + 2533119.

It is an arithmetic number, because the mean of its divisors is an integer number (391849920).

Almost surely, 2^26691462560 is an apocalyptic number.

26691462560 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 26691462560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37617592320).

26691462560 is an abundant number, since it is smaller than the sum of its proper divisors (48543722080).

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

26691462560 is a wasteful number, since it uses less digits than its factorization.

26691462560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10679 (or 10671 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 26691462560 in words is "twenty-six billion, six hundred ninety-one million, four hundred sixty-two thousand, five hundred sixty".