19481019480 has 256 divisors, whose sum is σ = 71823830400. Its totient is φ = 4665600000.

The previous prime is 19481019479. The next prime is 19481019529. The reversal of 19481019480 is 8491018491.

19481019480 is a `hidden beast` number, since 1 + 9 + 481 + 0 + 1 + 94 + 80 = 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 63 ways as a sum of consecutive naturals, for example, 500730 + ... + 538230.

Almost surely, 2^19481019480 is an apocalyptic number.

19481019480 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 19481019480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35911915200).

19481019480 is an abundant number, since it is smaller than the sum of its proper divisors (52342810920).

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

19481019480 is a wasteful number, since it uses less digits than its factorization.

19481019480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37571 (or 37561 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 19481019480 in words is "nineteen billion, four hundred eighty-one million, nineteen thousand, four hundred eighty".