26492665793940 has 768 divisors, whose sum is σ = 90000916992000. Its totient is φ = 6447396372480.

The previous prime is 26492665793903. The next prime is 26492665793941. The reversal of 26492665793940 is 4939756629462.

26492665793940 is a `hidden beast` number, since 2 + 6 + 4 + 9 + 2 + 6 + 6 + 579 + 3 + 9 + 40 = 666.

It is a super-2 number, since 2×26492665793940² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26492665793941) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 17059024204 + ... + 17059025756.

It is an arithmetic number, because the mean of its divisors is an integer number (117188694000).

Almost surely, 2^{26492665793940} is an apocalyptic number.

26492665793940 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 26492665793940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45000458496000).

26492665793940 is an abundant number, since it is smaller than the sum of its proper divisors (63508251198060).

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

26492665793940 is a wasteful number, since it uses less digits than its factorization.

26492665793940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2117 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 1058158080, while the sum is 72.

The spelling of 26492665793940 in words is "twenty-six trillion, four hundred ninety-two billion, six hundred sixty-five million, seven hundred ninety-three thousand, nine hundred forty".