19528944516 has 27 divisors (see below), whose sum is σ = 49366951543. Its totient is φ = 6509368680.

The previous prime is 19528944511. The next prime is 19528944521. The reversal of 19528944516 is 61544982591.

The square root of 19528944516 is 139746.

It is a perfect power (a square), and thus also a powerful number.

19528944516 is a `hidden beast` number, since 1 + 9 + 5 + 2 + 89 + 44 + 516 = 666.

It is an interprime number because it is at equal distance from previous prime (19528944511) and next prime (19528944521).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19528944511) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 826831 + ... + 850121.

Almost surely, 2^19528944516 is an apocalyptic number.

19528944516 is the 139746-th square number.

It is an amenable number.

19528944516 is an abundant number, since it is smaller than the sum of its proper divisors (29838007027).

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

19528944516 is an frugal number, since it uses more digits than its factorization.

19528944516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46592 (or 23296 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 19528944516 in words is "nineteen billion, five hundred twenty-eight million, nine hundred forty-four thousand, five hundred sixteen".