27779340502443 has 4 divisors (see below), whose sum is σ = 37039120669928. Its totient is φ = 18519560334960.

The previous prime is 27779340502429. The next prime is 27779340502447. The reversal of 27779340502443 is 34420504397772.

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

It is not a de Polignac number, because 27779340502443 - 2⁸ = 27779340502187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27779340502447) 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, 4629890083738 + ... + 4629890083743.

It is an arithmetic number, because the mean of its divisors is an integer number (9259780167482).

Almost surely, 2^{27779340502443} is an apocalyptic number.

27779340502443 is a deficient number, since it is larger than the sum of its proper divisors (9259780167485).

27779340502443 is an equidigital number, since it uses as much as digits as its factorization.

27779340502443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9259780167484.

The product of its (nonzero) digits is 35562240, while the sum is 57.

The spelling of 27779340502443 in words is "twenty-seven trillion, seven hundred seventy-nine billion, three hundred forty million, five hundred two thousand, four hundred forty-three".