1478115918139 has 8 divisors (see below), whose sum is σ = 1689466565088. Its totient is φ = 1266813078720.

The previous prime is 1478115918107. The next prime is 1478115918143. The reversal of 1478115918139 is 9318195118741.

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

It is not a de Polignac number, because 1478115918139 - 2⁵ = 1478115918107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1478115912139) 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 7 ways as a sum of consecutive naturals, for example, 11885602 + ... + 12009319.

It is an arithmetic number, because the mean of its divisors is an integer number (211183320636).

Almost surely, 2^{1478115918139} is an apocalyptic number.

1478115918139 is a deficient number, since it is larger than the sum of its proper divisors (211350646949).

1478115918139 is an equidigital number, since it uses as much as digits as its factorization.

1478115918139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23903765.

The product of its digits is 2177280, while the sum is 58.

The spelling of 1478115918139 in words is "one trillion, four hundred seventy-eight billion, one hundred fifteen million, nine hundred eighteen thousand, one hundred thirty-nine".