7146624820 has 12 divisors (see below), whose sum is σ = 15007912164. Its totient is φ = 2858649920.

The previous prime is 7146624799. The next prime is 7146624833. The reversal of 7146624820 is 284266417.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 973065636 + 6173559184 = 31194^2 + 78572^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178665601 + ... + 178665640.

It is an arithmetic number, because the mean of its divisors is an integer number (1250659347).

Almost surely, 2^7146624820 is an apocalyptic number.

It is an amenable number.

7146624820 is an abundant number, since it is smaller than the sum of its proper divisors (7861287344).

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

7146624820 is a wasteful number, since it uses less digits than its factorization.

7146624820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357331250 (or 357331248 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 7146624820 is about 84537.7124128634. The cubic root of 7146624820 is about 1926.1953396758.

The spelling of 7146624820 in words is "seven billion, one hundred forty-six million, six hundred twenty-four thousand, eight hundred twenty".