27048978007 has 4 divisors (see below), whose sum is σ = 27050859360. Its totient is φ = 27047096656.

The previous prime is 27048977981. The next prime is 27048978013. The reversal of 27048978007 is 70087984072.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27048978007 is a prime.

It is a super-2 number, since 2×27048978007² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27048978707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918943 + ... + 947920.

It is an arithmetic number, because the mean of its divisors is an integer number (6762714840).

Almost surely, 2^27048978007 is an apocalyptic number.

27048978007 is a deficient number, since it is larger than the sum of its proper divisors (1881353).

27048978007 is a wasteful number, since it uses less digits than its factorization.

27048978007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881352.

The product of its (nonzero) digits is 1580544, while the sum is 52.

The spelling of 27048978007 in words is "twenty-seven billion, forty-eight million, nine hundred seventy-eight thousand, seven".