19528032685 has 32 divisors (see below), whose sum is σ = 29016168192. Its totient is φ = 12309857280.

The previous prime is 19528032683. The next prime is 19528032703. The reversal of 19528032685 is 58623082591.

It is a happy number.

It is not a de Polignac number, because 19528032685 - 2¹ = 19528032683 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19528032683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356046 + ... + 407215.

It is an arithmetic number, because the mean of its divisors is an integer number (906755256).

Almost surely, 2^19528032685 is an apocalyptic number.

It is an amenable number.

19528032685 is a deficient number, since it is larger than the sum of its proper divisors (9488135507).

19528032685 is a wasteful number, since it uses less digits than its factorization.

19528032685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763333.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 19528032685 in words is "nineteen billion, five hundred twenty-eight million, thirty-two thousand, six hundred eighty-five".