19761142930 has 16 divisors (see below), whose sum is σ = 35584046784. Its totient is φ = 7901348400.

The previous prime is 19761142883. The next prime is 19761142939. The reversal of 19761142930 is 3924116791.

It is not an unprimeable number, because it can be changed into a prime (19761142939) 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, 361812 + ... + 412831.

It is an arithmetic number, because the mean of its divisors is an integer number (2224002924).

Almost surely, 2^19761142930 is an apocalyptic number.

19761142930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19761142930 is a deficient number, since it is larger than the sum of its proper divisors (15822903854).

19761142930 is a wasteful number, since it uses less digits than its factorization.

19761142930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777201.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 19761142930 in words is "nineteen billion, seven hundred sixty-one million, one hundred forty-two thousand, nine hundred thirty".