27015342081478 has 4 divisors (see below), whose sum is σ = 40523013122220. Its totient is φ = 13507671040738.

The previous prime is 27015342081473. The next prime is 27015342081487. The reversal of 27015342081478 is 87418024351072.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27015342081473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6753835520368 + ... + 6753835520371.

It is an arithmetic number, because the mean of its divisors is an integer number (10130753280555).

Almost surely, 2^{27015342081478} is an apocalyptic number.

27015342081478 is a deficient number, since it is larger than the sum of its proper divisors (13507671040742).

27015342081478 is a wasteful number, since it uses less digits than its factorization.

27015342081478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13507671040741.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 27015342081478 in words is "twenty-seven trillion, fifteen billion, three hundred forty-two million, eighty-one thousand, four hundred seventy-eight".