27521128842 has 8 divisors (see below), whose sum is σ = 55042257696. Its totient is φ = 9173709612.

The previous prime is 27521128823. The next prime is 27521128853. The reversal of 27521128842 is 24882112572.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

27521128842 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27521128794 and 27521128803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293427398 + ... + 2293427409.

It is an arithmetic number, because the mean of its divisors is an integer number (6880282212).

Almost surely, 2^27521128842 is an apocalyptic number.

27521128842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27521128842 is a wasteful number, since it uses less digits than its factorization.

27521128842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4586854812.

The product of its digits is 143360, while the sum is 42.

The spelling of 27521128842 in words is "twenty-seven billion, five hundred twenty-one million, one hundred twenty-eight thousand, eight hundred forty-two".