1375137638750 has 40 divisors (see below), whose sum is σ = 2582851860336. Its totient is φ = 548925336000.

The previous prime is 1375137638737. The next prime is 1375137638767. The reversal of 1375137638750 is 578367315731.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 520727 + ... + 1738226.

Almost surely, 2^{1375137638750} is an apocalyptic number.

1375137638750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375137638750 is a deficient number, since it is larger than the sum of its proper divisors (1207714221586).

1375137638750 is an equidigital number, since it uses as much as digits as its factorization.

1375137638750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259462 (or 2259447 counting only the distinct ones).

The product of its (nonzero) digits is 11113200, while the sum is 56.

The spelling of 1375137638750 in words is "one trillion, three hundred seventy-five billion, one hundred thirty-seven million, six hundred thirty-eight thousand, seven hundred fifty".