19804313770 has 16 divisors (see below), whose sum is σ = 36077257440. Its totient is φ = 7826282704.

The previous prime is 19804313729. The next prime is 19804313779. The reversal of 19804313770 is 7731340891.

It is a super-2 number, since 2×19804313770² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19804313779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11929480 + ... + 11931139.

It is an arithmetic number, because the mean of its divisors is an integer number (2254828590).

Almost surely, 2^19804313770 is an apocalyptic number.

19804313770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19804313770 is a deficient number, since it is larger than the sum of its proper divisors (16272943670).

19804313770 is a wasteful number, since it uses less digits than its factorization.

19804313770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23860709.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 19804313770 in words is "nineteen billion, eight hundred four million, three hundred thirteen thousand, seven hundred seventy".