26530041640 has 64 divisors (see below), whose sum is σ = 60191781120. Its totient is φ = 10523520000.

The previous prime is 26530041631. The next prime is 26530041673. The reversal of 26530041640 is 4614003562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3807760 + ... + 3814720.

It is an arithmetic number, because the mean of its divisors is an integer number (940496580).

Almost surely, 2^26530041640 is an apocalyptic number.

26530041640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26530041640 is an abundant number, since it is smaller than the sum of its proper divisors (33661739480).

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

26530041640 is a wasteful number, since it uses less digits than its factorization.

26530041640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754 (or 7750 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 26530041640 in words is "twenty-six billion, five hundred thirty million, forty-one thousand, six hundred forty".