7123739812 has 12 divisors (see below), whose sum is σ = 14247479680. Its totient is φ = 3053031336.

The previous prime is 7123739807. The next prime is 7123739893. The reversal of 7123739812 is 2189373217.

7123739812 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127209612 + ... + 127209667.

Almost surely, 2^7123739812 is an apocalyptic number.

It is an amenable number.

7123739812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7123739812 is a wasteful number, since it uses less digits than its factorization.

7123739812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254419290 (or 254419288 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 7123739812 is about 84402.2500410978. The cubic root of 7123739812 is about 1924.1371125179.

The spelling of 7123739812 in words is "seven billion, one hundred twenty-three million, seven hundred thirty-nine thousand, eight hundred twelve".