27480287797 has 8 divisors (see below), whose sum is σ = 28620508032. Its totient is φ = 26360989200.

The previous prime is 27480287767. The next prime is 27480287893. The reversal of 27480287797 is 79778208472.

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-27480287797 is a prime.

It is a super-2 number, since 2×27480287797² (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 (27480287767) 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, 5227729 + ... + 5232982.

It is an arithmetic number, because the mean of its divisors is an integer number (3577563504).

Almost surely, 2^27480287797 is an apocalyptic number.

It is an amenable number.

27480287797 is a deficient number, since it is larger than the sum of its proper divisors (1140220235).

27480287797 is a wasteful number, since it uses less digits than its factorization.

27480287797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10460819.

The product of its (nonzero) digits is 22127616, while the sum is 61.

The spelling of 27480287797 in words is "twenty-seven billion, four hundred eighty million, two hundred eighty-seven thousand, seven hundred ninety-seven".