27428012347 has 16 divisors (see below), whose sum is σ = 29839773600. Its totient is φ = 25105586688.

The previous prime is 27428012329. The next prime is 27428012387. The reversal of 27428012347 is 74321082472.

It is a cyclic number.

It is not a de Polignac number, because 27428012347 - 2²³ = 27419623739 is a prime.

It is a super-2 number, since 2×27428012347² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27428012317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594768 + ... + 1611874.

It is an arithmetic number, because the mean of its divisors is an integer number (1864985850).

Almost surely, 2^27428012347 is an apocalyptic number.

27428012347 is a deficient number, since it is larger than the sum of its proper divisors (2411761253).

27428012347 is a wasteful number, since it uses less digits than its factorization.

27428012347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710.

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 27428012347 in words is "twenty-seven billion, four hundred twenty-eight million, twelve thousand, three hundred forty-seven".