26097753240 has 384 divisors, whose sum is σ = 96948633600. Its totient is φ = 6035420160.

The previous prime is 26097753239. The next prime is 26097753289. The reversal of 26097753240 is 4235779062.

26097753240 is a `hidden beast` number, since 2 + 6 + 0 + 9 + 77 + 532 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 11291685 + ... + 11293995.

It is an arithmetic number, because the mean of its divisors is an integer number (252470400).

Almost surely, 2^26097753240 is an apocalyptic number.

26097753240 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 26097753240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48474316800).

26097753240 is an abundant number, since it is smaller than the sum of its proper divisors (70850880360).

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

26097753240 is a wasteful number, since it uses less digits than its factorization.

26097753240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 26097753240 in words is "twenty-six billion, ninety-seven million, seven hundred fifty-three thousand, two hundred forty".