19896980770 has 32 divisors (see below), whose sum is σ = 35940697920. Its totient is φ = 7930802880.

The previous prime is 19896980749. The next prime is 19896980837. The reversal of 19896980770 is 7708969891.

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, 7590060 + ... + 7592680.

It is an arithmetic number, because the mean of its divisors is an integer number (1123146810).

Almost surely, 2^19896980770 is an apocalyptic number.

19896980770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19896980770 is a deficient number, since it is larger than the sum of its proper divisors (16043717150).

19896980770 is a wasteful number, since it uses less digits than its factorization.

19896980770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5010.

The product of its (nonzero) digits is 13716864, while the sum is 64.

The spelling of 19896980770 in words is "nineteen billion, eight hundred ninety-six million, nine hundred eighty thousand, seven hundred seventy".