56138045369 has 8 divisors (see below), whose sum is σ = 64348147968. Its totient is φ = 47975538240.

The previous prime is 56138045347. The next prime is 56138045393. The reversal of 56138045369 is 96354083165.

It is a happy number.

56138045369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-56138045369 is a prime.

It is a super-2 number, since 2×56138045369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56138045329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11896337 + ... + 11901054.

It is an arithmetic number, because the mean of its divisors is an integer number (8043518496).

Almost surely, 2^56138045369 is an apocalyptic number.

It is an amenable number.

56138045369 is a deficient number, since it is larger than the sum of its proper divisors (8210102599).

56138045369 is a wasteful number, since it uses less digits than its factorization.

56138045369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23797735.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 56138045369 in words is "fifty-six billion, one hundred thirty-eight million, forty-five thousand, three hundred sixty-nine".