7800085530 has 48 divisors (see below), whose sum is σ = 20376386784. Its totient is φ = 2070159840.

The previous prime is 7800085511. The next prime is 7800085567. The reversal of 7800085530 is 355800087.

It is a happy number.

It is a super-3 number, since 3×7800085530³ (a number of 31 digits) contains 333 as substring.

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, 186384 + ... + 224363.

It is an arithmetic number, because the mean of its divisors is an integer number (424508058).

Almost surely, 2^7800085530 is an apocalyptic number.

7800085530 is an abundant number, since it is smaller than the sum of its proper divisors (12576301254).

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

7800085530 is a wasteful number, since it uses less digits than its factorization.

7800085530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410971 (or 410968 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 7800085530 is about 88318.0928802247. The cubic root of 7800085530 is about 1983.1997314771.

The spelling of 7800085530 in words is "seven billion, eight hundred million, eighty-five thousand, five hundred thirty".