7924133620 has 24 divisors (see below), whose sum is σ = 17920733544. Its totient is φ = 2925833856.

The previous prime is 7924133593. The next prime is 7924133629. The reversal of 7924133620 is 263314297.

It can be written as a sum of positive squares in 4 ways, for example, as 510579216 + 7413554404 = 22596^2 + 86102^2 .

It is a super-2 number, since 2×7924133620² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7924133620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7924133629) 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 7 ways as a sum of consecutive naturals, for example, 15238459 + ... + 15238978.

It is an arithmetic number, because the mean of its divisors is an integer number (746697231).

Almost surely, 2^7924133620 is an apocalyptic number.

It is an amenable number.

7924133620 is an abundant number, since it is smaller than the sum of its proper divisors (9996599924).

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

7924133620 is a wasteful number, since it uses less digits than its factorization.

7924133620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30477459 (or 30477457 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 7924133620 is about 89017.6028659501. The cubic root of 7924133620 is about 1993.6577106090.

The spelling of 7924133620 in words is "seven billion, nine hundred twenty-four million, one hundred thirty-three thousand, six hundred twenty".