5120065764 has 72 divisors (see below), whose sum is σ = 14329774368. Its totient is φ = 1528369920.

The previous prime is 5120065747. The next prime is 5120065777. The reversal of 5120065764 is 4675600215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69957 + ... + 123020.

It is an arithmetic number, because the mean of its divisors is an integer number (199024644).

Almost surely, 2^5120065764 is an apocalyptic number.

It is an amenable number.

5120065764 is an abundant number, since it is smaller than the sum of its proper divisors (9209708604).

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

5120065764 is a wasteful number, since it uses less digits than its factorization.

5120065764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193065 (or 193060 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 5120065764 is about 71554.6348184379. The cubic root of 5120065764 is about 1723.5551313816. Note that the first 3 decimals are identical.

Adding to 5120065764 its reverse (4675600215), we get a palindrome (9795665979).

It can be divided in two parts, 51200 and 65764, that added together give a square (116964 = 342²).

The spelling of 5120065764 in words is "five billion, one hundred twenty million, sixty-five thousand, seven hundred sixty-four".