9638783405049 has 4 divisors (see below), whose sum is σ = 12851711206736. Its totient is φ = 6425855603364.

The previous prime is 9638783405039. The next prime is 9638783405077. The reversal of 9638783405049 is 9405043878369.

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.

It is not a de Polignac number, because 9638783405049 - 2⁴ = 9638783405033 is a prime.

It is a super-2 number, since 2×9638783405049² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9638783405029) 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, 1606463900839 + ... + 1606463900844.

It is an arithmetic number, because the mean of its divisors is an integer number (3212927801684).

Almost surely, 2^{9638783405049} is an apocalyptic number.

It is an amenable number.

9638783405049 is a deficient number, since it is larger than the sum of its proper divisors (3212927801687).

9638783405049 is a wasteful number, since it uses less digits than its factorization.

9638783405049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212927801686.

The product of its (nonzero) digits is 156764160, while the sum is 66.

The spelling of 9638783405049 in words is "nine trillion, six hundred thirty-eight billion, seven hundred eighty-three million, four hundred five thousand, forty-nine".