27256290580 has 24 divisors (see below), whose sum is σ = 59084605440. Its totient is φ = 10550821920.

The previous prime is 27256290557. The next prime is 27256290583. The reversal of 27256290580 is 8509265272.

It is a self number, because there is not a number n which added to its sum of digits gives 27256290580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27256290583) 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, 21980260 + ... + 21981499.

It is an arithmetic number, because the mean of its divisors is an integer number (2461858560).

Almost surely, 2^27256290580 is an apocalyptic number.

27256290580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27256290580 is an abundant number, since it is smaller than the sum of its proper divisors (31828314860).

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

27256290580 is a wasteful number, since it uses less digits than its factorization.

27256290580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43961799 (or 43961797 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 27256290580 in words is "twenty-seven billion, two hundred fifty-six million, two hundred ninety thousand, five hundred eighty".