7820426072 has 32 divisors (see below), whose sum is σ = 14757120000. Its totient is φ = 3885268128.

The previous prime is 7820426063. The next prime is 7820426093. The reversal of 7820426072 is 2706240287.

It is a happy number.

It is a super-2 number, since 2×7820426072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911579 + ... + 920117.

It is an arithmetic number, because the mean of its divisors is an integer number (461160000).

Almost surely, 2^7820426072 is an apocalyptic number.

It is an amenable number.

7820426072 is a deficient number, since it is larger than the sum of its proper divisors (6936693928).

7820426072 is a wasteful number, since it uses less digits than its factorization.

7820426072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9263 (or 9259 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 7820426072 is about 88433.1729160500. The cubic root of 7820426072 is about 1984.9221204273.

The spelling of 7820426072 in words is "seven billion, eight hundred twenty million, four hundred twenty-six thousand, seventy-two".