27752487413 has 4 divisors (see below), whose sum is σ = 31717128480. Its totient is φ = 23787846348.

The previous prime is 27752487409. The next prime is 27752487431. The reversal of 27752487413 is 31478425772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27752487413 - 2² = 27752487409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27752187413) 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, 1982320523 + ... + 1982320536.

It is an arithmetic number, because the mean of its divisors is an integer number (7929282120).

Almost surely, 2^27752487413 is an apocalyptic number.

It is an amenable number.

27752487413 is a deficient number, since it is larger than the sum of its proper divisors (3964641067).

27752487413 is an equidigital number, since it uses as much as digits as its factorization.

27752487413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964641066.

The product of its digits is 2634240, while the sum is 50.

The spelling of 27752487413 in words is "twenty-seven billion, seven hundred fifty-two million, four hundred eighty-seven thousand, four hundred thirteen".