13825475464 has 8 divisors (see below), whose sum is σ = 25922766510. Its totient is φ = 6912737728.

The previous prime is 13825475453. The next prime is 13825475569. The reversal of 13825475464 is 46457452831.

It can be written as a sum of positive squares in only one way, i.e., 13016528100 + 808947364 = 114090^2 + 28442^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13825475464² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864092209 + ... + 864092224.

Almost surely, 2^13825475464 is an apocalyptic number.

It is an amenable number.

13825475464 is a deficient number, since it is larger than the sum of its proper divisors (12097291046).

13825475464 is a wasteful number, since it uses less digits than its factorization.

13825475464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728184439 (or 1728184435 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 49.

The spelling of 13825475464 in words is "thirteen billion, eight hundred twenty-five million, four hundred seventy-five thousand, four hundred sixty-four".