27736420573 has 4 divisors (see below), whose sum is σ = 27740276320. Its totient is φ = 27732564828.

The previous prime is 27736420541. The next prime is 27736420589. The reversal of 27736420573 is 37502463772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27736420573 - 2⁵ = 27736420541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27736420513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917063 + ... + 1931476.

It is an arithmetic number, because the mean of its divisors is an integer number (6935069080).

Almost surely, 2^27736420573 is an apocalyptic number.

It is an amenable number.

27736420573 is a deficient number, since it is larger than the sum of its proper divisors (3855747).

27736420573 is an equidigital number, since it uses as much as digits as its factorization.

27736420573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855746.

The product of its (nonzero) digits is 1481760, while the sum is 46.

The spelling of 27736420573 in words is "twenty-seven billion, seven hundred thirty-six million, four hundred twenty thousand, five hundred seventy-three".