199725419612 has 6 divisors (see below), whose sum is σ = 349519484328. Its totient is φ = 99862709804.

The previous prime is 199725419603. The next prime is 199725419623. The reversal of 199725419612 is 216914527991.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24965677448 + ... + 24965677455.

It is an arithmetic number, because the mean of its divisors is an integer number (58253247388).

Almost surely, 2^199725419612 is an apocalyptic number.

It is an amenable number.

199725419612 is a deficient number, since it is larger than the sum of its proper divisors (149794064716).

199725419612 is a wasteful number, since it uses less digits than its factorization.

199725419612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49931354907 (or 49931354905 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 56.

The spelling of 199725419612 in words is "one hundred ninety-nine billion, seven hundred twenty-five million, four hundred nineteen thousand, six hundred twelve".