938040946649 has 4 divisors (see below), whose sum is σ = 951252791040. Its totient is φ = 924829102260.

The previous prime is 938040946637. The next prime is 938040946663. The reversal of 938040946649 is 946649040839.

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, and also an emirpimes, since its reverse is a distinct semiprime: 946649040839 = 43 ⋅22015093973.

It is a cyclic number.

It is not a de Polignac number, because 938040946649 - 2²⁰ = 938039898073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 938040946591 and 938040946600.

It is not an unprimeable number, because it can be changed into a prime (938040546649) 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, 6605922089 + ... + 6605922230.

It is an arithmetic number, because the mean of its divisors is an integer number (237813197760).

Almost surely, 2^938040946649 is an apocalyptic number.

It is an amenable number.

938040946649 is a deficient number, since it is larger than the sum of its proper divisors (13211844391).

938040946649 is a wasteful number, since it uses less digits than its factorization.

938040946649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13211844390.

The product of its (nonzero) digits is 40310784, while the sum is 62.

The spelling of 938040946649 in words is "nine hundred thirty-eight billion, forty million, nine hundred forty-six thousand, six hundred forty-nine".