26006624540 has 24 divisors (see below), whose sum is σ = 58814982240. Its totient is φ = 9602445888.

The previous prime is 26006624533. The next prime is 26006624543. The reversal of 26006624540 is 4542660062.

It is a self number, because there is not a number n which added to its sum of digits gives 26006624540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26006624543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50012480 + ... + 50012999.

It is an arithmetic number, because the mean of its divisors is an integer number (2450624260).

Almost surely, 2^26006624540 is an apocalyptic number.

26006624540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26006624540 is an abundant number, since it is smaller than the sum of its proper divisors (32808357700).

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

26006624540 is a wasteful number, since it uses less digits than its factorization.

26006624540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100025501 (or 100025499 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 26006624540 in words is "twenty-six billion, six million, six hundred twenty-four thousand, five hundred forty".