26504047650 has 48 divisors (see below), whose sum is σ = 65878578144. Its totient is φ = 7051774080.

The previous prime is 26504047561. The next prime is 26504047679. The reversal of 26504047650 is 5674040562.

It is a junction number, because it is equal to n+sod(n) for n = 26504047599 and 26504047608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132979 + ... + 265878.

It is an arithmetic number, because the mean of its divisors is an integer number (1372470378).

Almost surely, 2^26504047650 is an apocalyptic number.

26504047650 is an abundant number, since it is smaller than the sum of its proper divisors (39374530494).

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

26504047650 is a wasteful number, since it uses less digits than its factorization.

26504047650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399315 (or 399310 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 26504047650 in words is "twenty-six billion, five hundred four million, forty-seven thousand, six hundred fifty".