27438780337 has 4 divisors (see below), whose sum is σ = 27515211840. Its totient is φ = 27362348836.

The previous prime is 27438780329. The next prime is 27438780349. The reversal of 27438780337 is 73308783472.

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 a cyclic number.

It is not a de Polignac number, because 27438780337 - 2³ = 27438780329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27438780437) 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, 38215213 + ... + 38215930.

It is an arithmetic number, because the mean of its divisors is an integer number (6878802960).

Almost surely, 2^27438780337 is an apocalyptic number.

It is an amenable number.

27438780337 is a deficient number, since it is larger than the sum of its proper divisors (76431503).

27438780337 is an equidigital number, since it uses as much as digits as its factorization.

27438780337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76431502.

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 27438780337 in words is "twenty-seven billion, four hundred thirty-eight million, seven hundred eighty thousand, three hundred thirty-seven".