27145921001 has 8 divisors (see below), whose sum is σ = 28235505408. Its totient is φ = 26069706000.

The previous prime is 27145920889. The next prime is 27145921003. The reversal of 27145921001 is 10012954172.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27145921001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27145921003) 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, 3338210 + ... + 3346331.

It is an arithmetic number, because the mean of its divisors is an integer number (3529438176).

Almost surely, 2^27145921001 is an apocalyptic number.

It is an amenable number.

27145921001 is a deficient number, since it is larger than the sum of its proper divisors (1089584407).

27145921001 is a wasteful number, since it uses less digits than its factorization.

27145921001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684703.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 27145921001 in words is "twenty-seven billion, one hundred forty-five million, nine hundred twenty-one thousand, one".