27457247255940 has 144 divisors (see below), whose sum is σ = 84963094122816. Its totient is φ = 7174922976000.

The previous prime is 27457247255923. The next prime is 27457247255987. The reversal of 27457247255940 is 4955274275472.

27457247255940 is a `hidden beast` number, since 2 + 7 + 4 + 5 + 7 + 2 + 4 + 72 + 559 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5962515 + ... + 9511365.

It is an arithmetic number, because the mean of its divisors is an integer number (590021486964).

Almost surely, 2^{27457247255940} is an apocalyptic number.

27457247255940 is a gapful number since it is divisible by the number (20) 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 27457247255940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42481547061408).

27457247255940 is an abundant number, since it is smaller than the sum of its proper divisors (57505846866876).

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

27457247255940 is a wasteful number, since it uses less digits than its factorization.

27457247255940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549730 (or 3549725 counting only the distinct ones).

The product of its (nonzero) digits is 197568000, while the sum is 63.

The spelling of 27457247255940 in words is "twenty-seven trillion, four hundred fifty-seven billion, two hundred forty-seven million, two hundred fifty-five thousand, nine hundred forty".