13475423755551 has 4 divisors (see below), whose sum is σ = 17967231674072. Its totient is φ = 8983615837032.

The previous prime is 13475423755399. The next prime is 13475423755553. The reversal of 13475423755551 is 15555732457431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13475423755551 - 2¹⁸ = 13475423493407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13475423755491 and 13475423755500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13475423755553) 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, 2245903959256 + ... + 2245903959261.

It is an arithmetic number, because the mean of its divisors is an integer number (4491807918518).

Almost surely, 2^{13475423755551} is an apocalyptic number.

13475423755551 is a deficient number, since it is larger than the sum of its proper divisors (4491807918521).

13475423755551 is an equidigital number, since it uses as much as digits as its factorization.

13475423755551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491807918520.

The product of its digits is 44100000, while the sum is 57.

The spelling of 13475423755551 in words is "thirteen trillion, four hundred seventy-five billion, four hundred twenty-three million, seven hundred fifty-five thousand, five hundred fifty-one".