27804478474 has 8 divisors (see below), whose sum is σ = 41747569668. Its totient is φ = 13888621920.

The previous prime is 27804478463. The next prime is 27804478477. The reversal of 27804478474 is 47487440872.

It can be written as a sum of positive squares in 2 ways, for example, as 25741956249 + 2062522225 = 160443^2 + 45415^2 .

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

It is a super-2 number, since 2×27804478474² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27804478477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6806107 + ... + 6810190.

Almost surely, 2^27804478474 is an apocalyptic number.

27804478474 is a deficient number, since it is larger than the sum of its proper divisors (13943091194).

27804478474 is a wasteful number, since it uses less digits than its factorization.

27804478474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617320.

The product of its (nonzero) digits is 11239424, while the sum is 55.

The spelling of 27804478474 in words is "twenty-seven billion, eight hundred four million, four hundred seventy-eight thousand, four hundred seventy-four".