1478355126117 has 4 divisors (see below), whose sum is σ = 1971140168160. Its totient is φ = 985570084076.

The previous prime is 1478355126103. The next prime is 1478355126137. The reversal of 1478355126117 is 7116215538741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1478355126117 - 2¹⁴ = 1478355109733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1478355126117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478355126137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 246392521017 + ... + 246392521022.

It is an arithmetic number, because the mean of its divisors is an integer number (492785042040).

Almost surely, 2^{1478355126117} is an apocalyptic number.

It is an amenable number.

1478355126117 is a deficient number, since it is larger than the sum of its proper divisors (492785042043).

1478355126117 is an equidigital number, since it uses as much as digits as its factorization.

1478355126117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492785042042.

The product of its digits is 1411200, while the sum is 51.

The spelling of 1478355126117 in words is "one trillion, four hundred seventy-eight billion, three hundred fifty-five million, one hundred twenty-six thousand, one hundred seventeen".