19672323652 has 24 divisors (see below), whose sum is σ = 36482324760. Its totient is φ = 9265347840.

The previous prime is 19672323647. The next prime is 19672323677. The reversal of 19672323652 is 25632327691.

It can be written as a sum of positive squares in 4 ways, for example, as 397444096 + 19274879556 = 19936^2 + 138834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063403 + ... + 2072914.

It is an arithmetic number, because the mean of its divisors is an integer number (1520096865).

Almost surely, 2^19672323652 is an apocalyptic number.

It is an amenable number.

19672323652 is a deficient number, since it is larger than the sum of its proper divisors (16810001108).

19672323652 is a wasteful number, since it uses less digits than its factorization.

19672323652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136391 (or 4136389 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The spelling of 19672323652 in words is "nineteen billion, six hundred seventy-two million, three hundred twenty-three thousand, six hundred fifty-two".