7621153652 has 36 divisors (see below), whose sum is σ = 16427115684. Its totient is φ = 3074077440.

The previous prime is 7621153651. The next prime is 7621153691. The reversal of 7621153652 is 2563511267.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6459979876 + 1161173776 = 80374^2 + 34076^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7621153651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1140299 + ... + 1146962.

It is an arithmetic number, because the mean of its divisors is an integer number (456308769).

Almost surely, 2^7621153652 is an apocalyptic number.

It is an amenable number.

7621153652 is an abundant number, since it is smaller than the sum of its proper divisors (8805962032).

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

7621153652 is a wasteful number, since it uses less digits than its factorization.

7621153652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287296 (or 2287287 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 7621153652 is about 87299.2190801269. The cubic root of 7621153652 is about 1967.9175820493.

The spelling of 7621153652 in words is "seven billion, six hundred twenty-one million, one hundred fifty-three thousand, six hundred fifty-two".