26305421560 has 64 divisors (see below), whose sum is σ = 64601128800. Its totient is φ = 9560678400.

The previous prime is 26305421551. The next prime is 26305421567. The reversal of 26305421560 is 6512450362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26305421567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 901276 + ... + 930004.

Almost surely, 2^26305421560 is an apocalyptic number.

26305421560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26305421560 is an abundant number, since it is smaller than the sum of its proper divisors (38295707240).

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

26305421560 is a wasteful number, since it uses less digits than its factorization.

26305421560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30832 (or 30828 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 26305421560 in words is "twenty-six billion, three hundred five million, four hundred twenty-one thousand, five hundred sixty".