1378174671111 has 32 divisors (see below), whose sum is σ = 2105195788800. Its totient is φ = 785610693504.

The previous prime is 1378174671103. The next prime is 1378174671143. The reversal of 1378174671111 is 1111764718731.

It is not a de Polignac number, because 1378174671111 - 2³ = 1378174671103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378174661111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14285665 + ... + 14381813.

It is an arithmetic number, because the mean of its divisors is an integer number (65787368400).

Almost surely, 2^{1378174671111} is an apocalyptic number.

1378174671111 is a deficient number, since it is larger than the sum of its proper divisors (727021117689).

1378174671111 is an equidigital number, since it uses as much as digits as its factorization.

1378174671111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97815.

The product of its digits is 197568, while the sum is 48.

The spelling of 1378174671111 in words is "one trillion, three hundred seventy-eight billion, one hundred seventy-four million, six hundred seventy-one thousand, one hundred eleven".