27164654021 has 8 divisors (see below), whose sum is σ = 27357720000. Its totient is φ = 26971761600.

The previous prime is 27164653987. The next prime is 27164654029. The reversal of 27164654021 is 12045646172.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 27164654021 - 2³⁴ = 9984784837 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 (27164654029) 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, 279230 + ... + 363728.

It is an arithmetic number, because the mean of its divisors is an integer number (3419715000).

Almost surely, 2^27164654021 is an apocalyptic number.

It is an amenable number.

27164654021 is a deficient number, since it is larger than the sum of its proper divisors (193065979).

27164654021 is a wasteful number, since it uses less digits than its factorization.

27164654021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86779.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 27164654021 in words is "twenty-seven billion, one hundred sixty-four million, six hundred fifty-four thousand, twenty-one".