7814813930 has 32 divisors (see below), whose sum is σ = 17537662080. Its totient is φ = 2435785920.

The previous prime is 7814813917. The next prime is 7814813971. The reversal of 7814813930 is 393184187.

It is a super-2 number, since 2×7814813930² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5073785 + ... + 5075324.

It is an arithmetic number, because the mean of its divisors is an integer number (548051940).

Almost surely, 2^7814813930 is an apocalyptic number.

7814813930 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7814813930 is an abundant number, since it is smaller than the sum of its proper divisors (9722848150).

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

7814813930 is a wasteful number, since it uses less digits than its factorization.

7814813930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10149134.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 7814813930 is about 88401.4362439887. The cubic root of 7814813930 is about 1984.4471961515.

The spelling of 7814813930 in words is "seven billion, eight hundred fourteen million, eight hundred thirteen thousand, nine hundred thirty".