26380845780 has 24 divisors (see below), whose sum is σ = 73866368352. Its totient is φ = 7034892192.

The previous prime is 26380845779. The next prime is 26380845791. The reversal of 26380845780 is 8754808362.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219840322 + ... + 219840441.

It is an arithmetic number, because the mean of its divisors is an integer number (3077765348).

Almost surely, 2^26380845780 is an apocalyptic number.

26380845780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26380845780 is an abundant number, since it is smaller than the sum of its proper divisors (47485522572).

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

26380845780 is a wasteful number, since it uses less digits than its factorization.

26380845780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439680775 (or 439680773 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 26380845780 in words is "twenty-six billion, three hundred eighty million, eight hundred forty-five thousand, seven hundred eighty".