26161475904 has 140 divisors (see below), whose sum is σ = 77629658304. Its totient is φ = 8711629056.

The previous prime is 26161475903. The next prime is 26161475927. The reversal of 26161475904 is 40957416162.

26161475904 is a `hidden beast` number, since 2 + 6 + 16 + 1 + 47 + 590 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 26161475904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26161475903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6877267 + ... + 6881069.

Almost surely, 2^26161475904 is an apocalyptic number.

26161475904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26161475904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38814829152).

26161475904 is an abundant number, since it is smaller than the sum of its proper divisors (51468182400).

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

26161475904 is a wasteful number, since it uses less digits than its factorization.

26161475904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 26161475904 in words is "twenty-six billion, one hundred sixty-one million, four hundred seventy-five thousand, nine hundred four".