26485787860 has 24 divisors (see below), whose sum is σ = 63565891200. Its totient is φ = 9080841504.

The previous prime is 26485787849. The next prime is 26485787863. The reversal of 26485787860 is 6878758462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26485787863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94591960 + ... + 94592239.

It is an arithmetic number, because the mean of its divisors is an integer number (2648578800).

Almost surely, 2^26485787860 is an apocalyptic number.

26485787860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26485787860 is an abundant number, since it is smaller than the sum of its proper divisors (37080103340).

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

26485787860 is a wasteful number, since it uses less digits than its factorization.

26485787860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189184215 (or 189184213 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 26485787860 in words is "twenty-six billion, four hundred eighty-five million, seven hundred eighty-seven thousand, eight hundred sixty".