7923942811 has 8 divisors (see below), whose sum is σ = 8392429440. Its totient is φ = 7455719808.

The previous prime is 7923942757. The next prime is 7923942821. The reversal of 7923942811 is 1182493297.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7923942811 - 2⁷ = 7923942683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7923942821) 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, 2251 + ... + 125908.

It is an arithmetic number, because the mean of its divisors is an integer number (1049053680).

Almost surely, 2^7923942811 is an apocalyptic number.

7923942811 is a deficient number, since it is larger than the sum of its proper divisors (468486629).

7923942811 is a wasteful number, since it uses less digits than its factorization.

7923942811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131813.

The product of its digits is 217728, while the sum is 46.

The square root of 7923942811 is about 89016.5311107999. The cubic root of 7923942811 is about 1993.6417084017.

The spelling of 7923942811 in words is "seven billion, nine hundred twenty-three million, nine hundred forty-two thousand, eight hundred eleven".