19472661936 has 360 divisors, whose sum is σ = 71869827120. Its totient is φ = 4864914432.

The previous prime is 19472661919. The next prime is 19472661941. The reversal of 19472661936 is 63916627491.

19472661936 is a `hidden beast` number, since 19 + 4 + 7 + 2 + 6 + 619 + 3 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1737246 + ... + 1748418.

Almost surely, 2^19472661936 is an apocalyptic number.

19472661936 is a gapful number since it is divisible by the number (16) 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 19472661936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35934913560).

19472661936 is an abundant number, since it is smaller than the sum of its proper divisors (52397165184).

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

19472661936 is a wasteful number, since it uses less digits than its factorization.

19472661936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11233 (or 11217 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 19472661936 in words is "nineteen billion, four hundred seventy-two million, six hundred sixty-one thousand, nine hundred thirty-six".