7120471820 has 48 divisors (see below), whose sum is σ = 18642693888. Its totient is φ = 2219367360.

The previous prime is 7120471807. The next prime is 7120471823. The reversal of 7120471820 is 281740217.

It is a happy number.

It is a super-2 number, since 2×7120471820² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7120471823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310302 + ... + 2313381.

It is an arithmetic number, because the mean of its divisors is an integer number (388389456).

Almost surely, 2^7120471820 is an apocalyptic number.

7120471820 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7120471820 is an abundant number, since it is smaller than the sum of its proper divisors (11522222068).

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

7120471820 is a wasteful number, since it uses less digits than its factorization.

7120471820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623710 (or 4623708 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 7120471820 is about 84382.8881942305. Note that the first 3 decimals coincide. The cubic root of 7120471820 is about 1923.8428370089.

The spelling of 7120471820 in words is "seven billion, one hundred twenty million, four hundred seventy-one thousand, eight hundred twenty".