27800001047 has 8 divisors (see below), whose sum is σ = 34215386016. Its totient is φ = 21995605152.

The previous prime is 27800001011. The next prime is 27800001049. The reversal of 27800001047 is 74010000872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27800001047 - 2⁶ = 27800000983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27800001049) 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, 152747168 + ... + 152747349.

It is an arithmetic number, because the mean of its divisors is an integer number (4276923252).

Almost surely, 2^27800001047 is an apocalyptic number.

27800001047 is a deficient number, since it is larger than the sum of its proper divisors (6415384969).

27800001047 is a wasteful number, since it uses less digits than its factorization.

27800001047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305494537.

The product of its (nonzero) digits is 3136, while the sum is 29.

The spelling of 27800001047 in words is "twenty-seven billion, eight hundred million, one thousand, forty-seven".