26391076992 has 384 divisors, whose sum is σ = 91563523200. Its totient is φ = 7460812800.

The previous prime is 26391076991. The next prime is 26391077003. The reversal of 26391076992 is 29967019362.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (26391076991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17102973 + ... + 17104515.

It is an arithmetic number, because the mean of its divisors is an integer number (238446675).

Almost surely, 2^26391076992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26391076992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45781761600).

26391076992 is an abundant number, since it is smaller than the sum of its proper divisors (65172446208).

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

26391076992 is a wasteful number, since it uses less digits than its factorization.

26391076992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 26391076992 in words is "twenty-six billion, three hundred ninety-one million, seventy-six thousand, nine hundred ninety-two".