12711950378 has 4 divisors (see below), whose sum is σ = 19067925570. Its totient is φ = 6355975188.

The previous prime is 12711950351. The next prime is 12711950387. The reversal of 12711950378 is 87305911721.

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

It can be written as a sum of positive squares in only one way, i.e., 12558115969 + 153834409 = 112063^2 + 12403^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177987593 + ... + 3177987596.

Almost surely, 2^12711950378 is an apocalyptic number.

12711950378 is a deficient number, since it is larger than the sum of its proper divisors (6355975192).

12711950378 is an equidigital number, since it uses as much as digits as its factorization.

12711950378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355975191.

The product of its (nonzero) digits is 105840, while the sum is 44.

The spelling of 12711950378 in words is "twelve billion, seven hundred eleven million, nine hundred fifty thousand, three hundred seventy-eight".