26245136430 has 160 divisors (see below), whose sum is σ = 76013942400. Its totient is φ = 6475992768.

The previous prime is 26245136419. The next prime is 26245136431. The reversal of 26245136430 is 3463154262.

26245136430 is a `hidden beast` number, since 2 + 6 + 2 + 4 + 5 + 1 + 3 + 643 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26245136431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 641941 + ... + 681599.

It is an arithmetic number, because the mean of its divisors is an integer number (475087140).

Almost surely, 2^26245136430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26245136430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38006971200).

26245136430 is an abundant number, since it is smaller than the sum of its proper divisors (49768805970).

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

26245136430 is a wasteful number, since it uses less digits than its factorization.

26245136430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39740 (or 39731 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 26245136430 in words is "twenty-six billion, two hundred forty-five million, one hundred thirty-six thousand, four hundred thirty".