26236274064 has 320 divisors, whose sum is σ = 94961922048. Its totient is φ = 6016665600.

The previous prime is 26236274039. The next prime is 26236274083. The reversal of 26236274064 is 46047263262.

It is a super-2 number, since 2×26236274064² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1093234 + ... + 1116974.

Almost surely, 2^26236274064 is an apocalyptic number.

26236274064 is a gapful number since it is divisible by the number (24) 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 26236274064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47480961024).

26236274064 is an abundant number, since it is smaller than the sum of its proper divisors (68725647984).

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

26236274064 is a wasteful number, since it uses less digits than its factorization.

26236274064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23806 (or 23800 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 26236274064 in words is "twenty-six billion, two hundred thirty-six million, two hundred seventy-four thousand, sixty-four".