26215609548 has 12 divisors (see below), whose sum is σ = 61169755640. Its totient is φ = 8738536512.

The previous prime is 26215609481. The next prime is 26215609549. The reversal of 26215609548 is 84590651262.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 26215609497 and 26215609506.

It is not an unprimeable number, because it can be changed into a prime (26215609549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092317053 + ... + 1092317076.

Almost surely, 2^26215609548 is an apocalyptic number.

It is an amenable number.

26215609548 is an abundant number, since it is smaller than the sum of its proper divisors (34954146092).

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

26215609548 is a wasteful number, since it uses less digits than its factorization.

26215609548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184634136 (or 2184634134 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 26215609548 in words is "twenty-six billion, two hundred fifteen million, six hundred nine thousand, five hundred forty-eight".