7948999830 has 16 divisors (see below), whose sum is σ = 19077599664. Its totient is φ = 2119733280.

The previous prime is 7948999813. The next prime is 7948999831. The reversal of 7948999830 is 389998497.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948999831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 132483301 + ... + 132483360.

It is an arithmetic number, because the mean of its divisors is an integer number (1192349979).

Almost surely, 2^7948999830 is an apocalyptic number.

7948999830 is an abundant number, since it is smaller than the sum of its proper divisors (11128599834).

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

7948999830 is a wasteful number, since it uses less digits than its factorization.

7948999830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264966671.

The product of its (nonzero) digits is 35271936, while the sum is 66.

The square root of 7948999830 is about 89157.1636493670. The cubic root of 7948999830 is about 1995.7409224005.

The spelling of 7948999830 in words is "seven billion, nine hundred forty-eight million, nine hundred ninety-nine thousand, eight hundred thirty".