7923442775 has 6 divisors (see below), whose sum is σ = 9825069072. Its totient is φ = 6338754200.

The previous prime is 7923442771. The next prime is 7923442801. The reversal of 7923442775 is 5772443297.

It is a happy number.

It is not a de Polignac number, because 7923442775 - 2² = 7923442771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7923442771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158468831 + ... + 158468880.

It is an arithmetic number, because the mean of its divisors is an integer number (1637511512).

Almost surely, 2^7923442775 is an apocalyptic number.

7923442775 is a deficient number, since it is larger than the sum of its proper divisors (1901626297).

7923442775 is a wasteful number, since it uses less digits than its factorization.

7923442775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316937721 (or 316937716 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 50.

The square root of 7923442775 is about 89013.7223971675. The cubic root of 7923442775 is about 1993.5997716361.

The spelling of 7923442775 in words is "seven billion, nine hundred twenty-three million, four hundred forty-two thousand, seven hundred seventy-five".