26668521292 has 24 divisors (see below), whose sum is σ = 53519096736. Its totient is φ = 11390354688.

The previous prime is 26668521281. The next prime is 26668521293. The reversal of 26668521292 is 29212586662.

It is a super-2 number, since 2×26668521292² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26668521293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1617133 + ... + 1633540.

It is an arithmetic number, because the mean of its divisors is an integer number (2229962364).

Almost surely, 2^26668521292 is an apocalyptic number.

It is an amenable number.

26668521292 is an abundant number, since it is smaller than the sum of its proper divisors (26850575444).

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

26668521292 is a wasteful number, since it uses less digits than its factorization.

26668521292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250977 (or 3250975 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The spelling of 26668521292 in words is "twenty-six billion, six hundred sixty-eight million, five hundred twenty-one thousand, two hundred ninety-two".