7072778930 has 32 divisors (see below), whose sum is σ = 14552680320. Its totient is φ = 2424458880.

The previous prime is 7072778917. The next prime is 7072778989. The reversal of 7072778930 is 398772707.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559985 + ... + 572475.

It is an arithmetic number, because the mean of its divisors is an integer number (454771260).

Almost surely, 2^7072778930 is an apocalyptic number.

7072778930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7072778930 is an abundant number, since it is smaller than the sum of its proper divisors (7479901390).

7072778930 is a wasteful number, since it uses less digits than its factorization.

7072778930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20594.

The product of its (nonzero) digits is 1037232, while the sum is 50.

The square root of 7072778930 is about 84099.8152792264. The cubic root of 7072778930 is about 1919.5379141533.

The spelling of 7072778930 in words is "seven billion, seventy-two million, seven hundred seventy-eight thousand, nine hundred thirty".