26264072500 has 60 divisors (see below), whose sum is σ = 57494120992. Its totient is φ = 10494684000.

The previous prime is 26264072479. The next prime is 26264072519. The reversal of 26264072500 is 527046262.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2652559 + ... + 2662441.

Almost surely, 2^26264072500 is an apocalyptic number.

26264072500 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 26264072500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28747060496).

26264072500 is an abundant number, since it is smaller than the sum of its proper divisors (31230048492).

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

26264072500 is a wasteful number, since it uses less digits than its factorization.

26264072500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970 (or 10953 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The spelling of 26264072500 in words is "twenty-six billion, two hundred sixty-four million, seventy-two thousand, five hundred".