19976463000 has 640 divisors, whose sum is σ = 76678842240. Its totient is φ = 4821120000.

The previous prime is 19976462993. The next prime is 19976463011. The reversal of 19976463000 is 36467991.

19976463000 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 6 + 4 + 630 + 0 + 0 = 666.

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 159 ways as a sum of consecutive naturals, for example, 64232845 + ... + 64233155.

It is an arithmetic number, because the mean of its divisors is an integer number (119810691).

Almost surely, 2^19976463000 is an apocalyptic number.

19976463000 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 19976463000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38339421120).

19976463000 is an abundant number, since it is smaller than the sum of its proper divisors (56702379240).

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

19976463000 is a wasteful number, since it uses less digits than its factorization.

19976463000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 19976463000 in words is "nineteen billion, nine hundred seventy-six million, four hundred sixty-three thousand".