19064640960 has 168 divisors, whose sum is σ = 66553817616. Its totient is φ = 5007974400.

The previous prime is 19064640937. The next prime is 19064641033. The reversal of 19064640960 is 6904646091.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143560 + ... + 242360.

Almost surely, 2^19064640960 is an apocalyptic number.

19064640960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19064640960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33276908808).

19064640960 is an abundant number, since it is smaller than the sum of its proper divisors (47489176656).

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

19064640960 is a wasteful number, since it uses less digits than its factorization.

19064640960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98891 (or 98878 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 19064640960 in words is "nineteen billion, sixty-four million, six hundred forty thousand, nine hundred sixty".