19573897852 has 24 divisors (see below), whose sum is σ = 36277098480. Its totient is φ = 9209260800.

The previous prime is 19573897841. The next prime is 19573897867. The reversal of 19573897852 is 25879837591.

It is a congruent number.

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, 314974 + ... + 371962.

It is an arithmetic number, because the mean of its divisors is an integer number (1511545770).

Almost surely, 2^19573897852 is an apocalyptic number.

It is an amenable number.

19573897852 is a deficient number, since it is larger than the sum of its proper divisors (16703200628).

19573897852 is a wasteful number, since it uses less digits than its factorization.

19573897852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62061 (or 62059 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 64.

The spelling of 19573897852 in words is "nineteen billion, five hundred seventy-three million, eight hundred ninety-seven thousand, eight hundred fifty-two".