7920864030 has 32 divisors (see below), whose sum is σ = 19321718688. Its totient is φ = 2077603200.

The previous prime is 7920864013. The next prime is 7920864031. The reversal of 7920864030 is 304680297.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7920864030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920864031) 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, 2162341 + ... + 2166000.

It is an arithmetic number, because the mean of its divisors is an integer number (603803709).

Almost surely, 2^7920864030 is an apocalyptic number.

7920864030 is an abundant number, since it is smaller than the sum of its proper divisors (11400854658).

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

7920864030 is a wasteful number, since it uses less digits than its factorization.

7920864030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328412.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 7920864030 is about 88999.2361203173. The cubic root of 7920864030 is about 1993.3834707421.

The spelling of 7920864030 in words is "seven billion, nine hundred twenty million, eight hundred sixty-four thousand, thirty".