1391875008005 has 8 divisors (see below), whose sum is σ = 1670270298624. Its totient is φ = 1113486480400.

The previous prime is 1391875008001. The next prime is 1391875008047. The reversal of 1391875008005 is 5008005781931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1391875008005 - 2² = 1391875008001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391875008001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1226381 + ... + 2070690.

It is an arithmetic number, because the mean of its divisors is an integer number (208783787328).

Almost surely, 2^{1391875008005} is an apocalyptic number.

It is an amenable number.

1391875008005 is a deficient number, since it is larger than the sum of its proper divisors (278395290619).

1391875008005 is an equidigital number, since it uses as much as digits as its factorization.

1391875008005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381507.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 1391875008005 in words is "one trillion, three hundred ninety-one billion, eight hundred seventy-five million, eight thousand, five".