27355642472424 has 128 divisors (see below), whose sum is σ = 78608775168000. Its totient is φ = 7770964414464.

The previous prime is 27355642472399. The next prime is 27355642472441. The reversal of 27355642472424 is 42427424655372.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56793997 + ... + 57273635.

It is an arithmetic number, because the mean of its divisors is an integer number (614131056000).

Almost surely, 2^{27355642472424} is an apocalyptic number.

27355642472424 is a gapful number since it is divisible by the number (24) 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 27355642472424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39304387584000).

27355642472424 is an abundant number, since it is smaller than the sum of its proper divisors (51253132695576).

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

27355642472424 is a wasteful number, since it uses less digits than its factorization.

27355642472424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481607 (or 481603 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 57.

The spelling of 27355642472424 in words is "twenty-seven trillion, three hundred fifty-five billion, six hundred forty-two million, four hundred seventy-two thousand, four hundred twenty-four".