27620088821 has 32 divisors (see below), whose sum is σ = 31876196352. Its totient is φ = 23732533440.

The previous prime is 27620088799. The next prime is 27620088829. The reversal of 27620088821 is 12888002672.

It is a de Polignac number, because none of the positive numbers 2^k-27620088821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27620088829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3634736 + ... + 3642326.

It is an arithmetic number, because the mean of its divisors is an integer number (996131136).

Almost surely, 2^27620088821 is an apocalyptic number.

It is an amenable number.

27620088821 is a deficient number, since it is larger than the sum of its proper divisors (4256107531).

27620088821 is a wasteful number, since it uses less digits than its factorization.

27620088821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953.

The product of its (nonzero) digits is 172032, while the sum is 44.

The spelling of 27620088821 in words is "twenty-seven billion, six hundred twenty million, eighty-eight thousand, eight hundred twenty-one".