6938492648 has 16 divisors (see below), whose sum is σ = 13326983460. Its totient is φ = 3384630400.

The previous prime is 6938492629. The next prime is 6938492653. The reversal of 6938492648 is 8462948396.

It can be written as a sum of positive squares in 2 ways, for example, as 5625300004 + 1313192644 = 75002^2 + 36238^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10576643 + ... + 10577298.

Almost surely, 2^6938492648 is an apocalyptic number.

It is an amenable number.

6938492648 is a deficient number, since it is larger than the sum of its proper divisors (6388490812).

6938492648 is a wasteful number, since it uses less digits than its factorization.

6938492648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21153988 (or 21153984 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 59.

The square root of 6938492648 is about 83297.6148998277. The cubic root of 6938492648 is about 1907.3118666425.

The spelling of 6938492648 in words is "six billion, nine hundred thirty-eight million, four hundred ninety-two thousand, six hundred forty-eight".