19107451220 has 72 divisors (see below), whose sum is σ = 47497825032. Its totient is φ = 6413679360.

The previous prime is 19107451219. The next prime is 19107451229. The reversal of 19107451220 is 2215470191.

It can be written as a sum of positive squares in 4 ways, for example, as 2926593604 + 16180857616 = 54098^2 + 127204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19107451229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272219 + ... + 335138.

Almost surely, 2^19107451220 is an apocalyptic number.

19107451220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19107451220 is an abundant number, since it is smaller than the sum of its proper divisors (28390373812).

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

19107451220 is a wasteful number, since it uses less digits than its factorization.

19107451220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607401 (or 607388 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 19107451220 in words is "nineteen billion, one hundred seven million, four hundred fifty-one thousand, two hundred twenty".