13425436773 has 28 divisors (see below), whose sum is σ = 23004519648. Its totient is φ = 7671675240.

The previous prime is 13425436771. The next prime is 13425436807. The reversal of 13425436773 is 37763452431.

13425436773 is a `hidden beast` number, since 1 + 3 + 42 + 543 + 67 + 7 + 3 = 666.

It is not a de Polignac number, because 13425436773 - 2¹ = 13425436771 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13425436771) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1310343 + ... + 1320548.

Almost surely, 2^13425436773 is an apocalyptic number.

It is an amenable number.

13425436773 is a deficient number, since it is larger than the sum of its proper divisors (9579082875).

13425436773 is an frugal number, since it uses more digits than its factorization.

13425436773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630916 (or 2630901 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The spelling of 13425436773 in words is "thirteen billion, four hundred twenty-five million, four hundred thirty-six thousand, seven hundred seventy-three".