27354819021 has 8 divisors (see below), whose sum is σ = 37458851424. Its totient is φ = 17743666320.

The previous prime is 27354818929. The next prime is 27354819029. The reversal of 27354819021 is 12091845372.

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

It is not a de Polignac number, because 27354819021 - 2⁹ = 27354818509 is a prime.

It is a super-2 number, since 2×27354819021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27354819029) 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, 123219795 + ... + 123220016.

It is an arithmetic number, because the mean of its divisors is an integer number (4682356428).

Almost surely, 2^27354819021 is an apocalyptic number.

It is an amenable number.

27354819021 is a deficient number, since it is larger than the sum of its proper divisors (10104032403).

27354819021 is a wasteful number, since it uses less digits than its factorization.

27354819021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246439851.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 27354819021 in words is "twenty-seven billion, three hundred fifty-four million, eight hundred nineteen thousand, twenty-one".