7920783528 has 64 divisors (see below), whose sum is σ = 22683525120. Its totient is φ = 2257809600.

The previous prime is 7920783527. The next prime is 7920783581. The reversal of 7920783528 is 8253870297.

It is a super-2 number, since 2×7920783528² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7920783527) 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, 17713 + ... + 127103.

It is an arithmetic number, because the mean of its divisors is an integer number (354430080).

Almost surely, 2^7920783528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7920783528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11341762560).

7920783528 is an abundant number, since it is smaller than the sum of its proper divisors (14762741592).

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

7920783528 is a wasteful number, since it uses less digits than its factorization.

7920783528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109838 (or 109834 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 7920783528 is about 88998.7838568595. The cubic root of 7920783528 is about 1993.3767176110.

It can be divided in two parts, 79207 and 83528, that added together give a triangular number (162735 = T₅₇₀).

The spelling of 7920783528 in words is "seven billion, nine hundred twenty million, seven hundred eighty-three thousand, five hundred twenty-eight".