199462128542 has 8 divisors (see below), whose sum is σ = 299199442032. Its totient is φ = 99728981200.

The previous prime is 199462128539. The next prime is 199462128553. The reversal of 199462128542 is 245821264991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918959 + ... + 1115082.

It is an arithmetic number, because the mean of its divisors is an integer number (37399930254).

Almost surely, 2^199462128542 is an apocalyptic number.

199462128542 is a deficient number, since it is larger than the sum of its proper divisors (99737313490).

199462128542 is a wasteful number, since it uses less digits than its factorization.

199462128542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083074.

The product of its digits is 2488320, while the sum is 53.

The spelling of 199462128542 in words is "one hundred ninety-nine billion, four hundred sixty-two million, one hundred twenty-eight thousand, five hundred forty-two".