27889231445 has 8 divisors (see below), whose sum is σ = 33479348640. Its totient is φ = 22303204560.

The previous prime is 27889231427. The next prime is 27889231451. The reversal of 27889231445 is 54413298872.

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

It is not a de Polignac number, because 27889231445 - 2²⁴ = 27872454229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007555 + ... + 1034864.

It is an arithmetic number, because the mean of its divisors is an integer number (4184918580).

Almost surely, 2^27889231445 is an apocalyptic number.

It is an amenable number.

27889231445 is a deficient number, since it is larger than the sum of its proper divisors (5590117195).

27889231445 is a wasteful number, since it uses less digits than its factorization.

27889231445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045155.

The product of its digits is 3870720, while the sum is 53.

The spelling of 27889231445 in words is "twenty-seven billion, eight hundred eighty-nine million, two hundred thirty-one thousand, four hundred forty-five".