7923707378 has 16 divisors (see below), whose sum is σ = 12629196000. Its totient is φ = 3715622976.

The previous prime is 7923707377. The next prime is 7923707387. The reversal of 7923707378 is 8737073297.

It is a super-2 number, since 2×7923707378² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7923707377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402128 + ... + 421371.

It is an arithmetic number, because the mean of its divisors is an integer number (789324750).

Almost surely, 2^7923707378 is an apocalyptic number.

7923707378 is a deficient number, since it is larger than the sum of its proper divisors (4705488622).

7923707378 is a wasteful number, since it uses less digits than its factorization.

7923707378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823801.

The product of its (nonzero) digits is 3111696, while the sum is 53.

The square root of 7923707378 is about 89015.2086893021. The cubic root of 7923707378 is about 1993.6219634461.

The spelling of 7923707378 in words is "seven billion, nine hundred twenty-three million, seven hundred seven thousand, three hundred seventy-eight".