7860648938 has 16 divisors (see below), whose sum is σ = 12529645704. Its totient is φ = 3685770240.

The previous prime is 7860648931. The next prime is 7860648941. The reversal of 7860648938 is 8398460687.

It can be written as a sum of positive squares in 4 ways, for example, as 3997653529 + 3862995409 = 63227^2 + 62153^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7860648931) 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, 407903 + ... + 426738.

Almost surely, 2^7860648938 is an apocalyptic number.

7860648938 is a deficient number, since it is larger than the sum of its proper divisors (4668996766).

7860648938 is a wasteful number, since it uses less digits than its factorization.

7860648938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834937.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The square root of 7860648938 is about 88660.3008003018. The cubic root of 7860648938 is about 1988.3193252259.

The spelling of 7860648938 in words is "seven billion, eight hundred sixty million, six hundred forty-eight thousand, nine hundred thirty-eight".