27791125477801 has 8 divisors (see below), whose sum is σ = 31922511065280. Its totient is φ = 23700046091568.

The previous prime is 27791125477757. The next prime is 27791125477847. The reversal of 27791125477801 is 10877452119772.

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

It is not a de Polignac number, because 27791125477801 - 2⁹ = 27791125477289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27791125477801.

It is not an unprimeable number, because it can be changed into a prime (27791125477501) 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, 10076548831 + ... + 10076551588.

It is an arithmetic number, because the mean of its divisors is an integer number (3990313883160).

Almost surely, 2^{27791125477801} is an apocalyptic number.

It is an amenable number.

27791125477801 is a deficient number, since it is larger than the sum of its proper divisors (4131385587479).

27791125477801 is a wasteful number, since it uses less digits than its factorization.

27791125477801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20153100623.

The product of its (nonzero) digits is 13829760, while the sum is 61.

The spelling of 27791125477801 in words is "twenty-seven trillion, seven hundred ninety-one billion, one hundred twenty-five million, four hundred seventy-seven thousand, eight hundred one".