1375138887612 has 24 divisors (see below), whose sum is σ = 3667037033856. Its totient is φ = 392896825008.

The previous prime is 1375138887569. The next prime is 1375138887653. The reversal of 1375138887612 is 2167888315731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8185350438 + ... + 8185350605.

It is an arithmetic number, because the mean of its divisors is an integer number (152793209744).

Almost surely, 2^{1375138887612} is an apocalyptic number.

1375138887612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1375138887612 is an abundant number, since it is smaller than the sum of its proper divisors (2291898146244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375138887612 is a wasteful number, since it uses less digits than its factorization.

1375138887612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16370701057 (or 16370701055 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 60.

The spelling of 1375138887612 in words is "one trillion, three hundred seventy-five billion, one hundred thirty-eight million, eight hundred eighty-seven thousand, six hundred twelve".