7434947811 has 4 divisors (see below), whose sum is σ = 9913263752. Its totient is φ = 4956631872.

The previous prime is 7434947803. The next prime is 7434947827. The reversal of 7434947811 is 1187494347.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7434947811 - 2³ = 7434947803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7434947801) 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 3 ways as a sum of consecutive naturals, for example, 1239157966 + ... + 1239157971.

It is an arithmetic number, because the mean of its divisors is an integer number (2478315938).

Almost surely, 2^7434947811 is an apocalyptic number.

7434947811 is a deficient number, since it is larger than the sum of its proper divisors (2478315941).

7434947811 is a wasteful number, since it uses less digits than its factorization.

7434947811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478315940.

The product of its digits is 677376, while the sum is 48.

The square root of 7434947811 is about 86226.1434310963. The cubic root of 7434947811 is about 1951.7580298184.

The spelling of 7434947811 in words is "seven billion, four hundred thirty-four million, nine hundred forty-seven thousand, eight hundred eleven".