26581054416 has 80 divisors (see below), whose sum is σ = 82607808000. Its totient is φ = 7194870144.

The previous prime is 26581054393. The next prime is 26581054417. The reversal of 26581054416 is 61445018562.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26581054417) 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, 2075466 + ... + 2088233.

It is an arithmetic number, because the mean of its divisors is an integer number (1032597600).

Almost surely, 2^26581054416 is an apocalyptic number.

It is an amenable number.

26581054416 is an abundant number, since it is smaller than the sum of its proper divisors (56026753584).

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

26581054416 is a wasteful number, since it uses less digits than its factorization.

26581054416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4163736 (or 4163730 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The spelling of 26581054416 in words is "twenty-six billion, five hundred eighty-one million, fifty-four thousand, four hundred sixteen".