26361765920 has 192 divisors, whose sum is σ = 73690767360. Its totient is φ = 8723054592.

The previous prime is 26361765893. The next prime is 26361765949. The reversal of 26361765920 is 2956716362.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5260376 + ... + 5265384.

It is an arithmetic number, because the mean of its divisors is an integer number (383806080).

Almost surely, 2^26361765920 is an apocalyptic number.

26361765920 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 26361765920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36845383680).

26361765920 is an abundant number, since it is smaller than the sum of its proper divisors (47329001440).

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

26361765920 is a wasteful number, since it uses less digits than its factorization.

26361765920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5187 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 26361765920 in words is "twenty-six billion, three hundred sixty-one million, seven hundred sixty-five thousand, nine hundred twenty".