27485473921 has 8 divisors (see below), whose sum is σ = 28771711488. Its totient is φ = 26224212000.

The previous prime is 27485473919. The next prime is 27485473931. The reversal of 27485473921 is 12937458472.

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 27485473921 - 2¹ = 27485473919 is a prime.

It is a super-2 number, since 2×27485473921² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27485473901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6241660 + ... + 6246061.

It is an arithmetic number, because the mean of its divisors is an integer number (3596463936).

Almost surely, 2^27485473921 is an apocalyptic number.

It is an amenable number.

27485473921 is a deficient number, since it is larger than the sum of its proper divisors (1286237567).

27485473921 is a wasteful number, since it uses less digits than its factorization.

27485473921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12487823.

The product of its digits is 3386880, while the sum is 52.

The spelling of 27485473921 in words is "twenty-seven billion, four hundred eighty-five million, four hundred seventy-three thousand, nine hundred twenty-one".