190857199612 has 48 divisors (see below), whose sum is σ = 342456666048. Its totient is φ = 93043722240.

The previous prime is 190857199579. The next prime is 190857199619. The reversal of 190857199612 is 216991758091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190857199619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68234998 + ... + 68237794.

It is an arithmetic number, because the mean of its divisors is an integer number (7134513876).

Almost surely, 2^190857199612 is an apocalyptic number.

It is an amenable number.

190857199612 is a deficient number, since it is larger than the sum of its proper divisors (151599466436).

190857199612 is a wasteful number, since it uses less digits than its factorization.

190857199612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446 (or 5444 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 58.

The spelling of 190857199612 in words is "one hundred ninety billion, eight hundred fifty-seven million, one hundred ninety-nine thousand, six hundred twelve".