19727032416 has 384 divisors, whose sum is σ = 67604382720. Its totient is φ = 4891041792.

The previous prime is 19727032411. The next prime is 19727032421. The reversal of 19727032416 is 61423072791.

It is an interprime number because it is at equal distance from previous prime (19727032411) and next prime (19727032421).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19727032411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26059110 + ... + 26059866.

It is an arithmetic number, because the mean of its divisors is an integer number (176053080).

Almost surely, 2^19727032416 is an apocalyptic number.

19727032416 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 19727032416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33802191360).

19727032416 is an abundant number, since it is smaller than the sum of its proper divisors (47877350304).

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

19727032416 is a wasteful number, since it uses less digits than its factorization.

19727032416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 19727032416 in words is "nineteen billion, seven hundred twenty-seven million, thirty-two thousand, four hundred sixteen".