13856151473 has 4 divisors (see below), whose sum is σ = 14051308608. Its totient is φ = 13660994340.

The previous prime is 13856151457. The next prime is 13856151479. The reversal of 13856151473 is 37415165831.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37415165831 = 25939 ⋅1442429.

It is a cyclic number.

It is not a de Polignac number, because 13856151473 - 2⁴ = 13856151457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13856151479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97578461 + ... + 97578602.

It is an arithmetic number, because the mean of its divisors is an integer number (3512827152).

Almost surely, 2^13856151473 is an apocalyptic number.

It is an amenable number.

13856151473 is a deficient number, since it is larger than the sum of its proper divisors (195157135).

13856151473 is an equidigital number, since it uses as much as digits as its factorization.

13856151473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195157134.

The product of its digits is 302400, while the sum is 44.

The spelling of 13856151473 in words is "thirteen billion, eight hundred fifty-six million, one hundred fifty-one thousand, four hundred seventy-three".