190318520312 has 8 divisors (see below), whose sum is σ = 356847225600. Its totient is φ = 95159260152.

The previous prime is 190318520299. The next prime is 190318520369. The reversal of 190318520312 is 213025813091.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×190318520312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11894907512 + ... + 11894907527.

It is an arithmetic number, because the mean of its divisors is an integer number (44605903200).

Almost surely, 2^190318520312 is an apocalyptic number.

It is an amenable number.

190318520312 is a deficient number, since it is larger than the sum of its proper divisors (166528705288).

190318520312 is a wasteful number, since it uses less digits than its factorization.

190318520312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23789815045 (or 23789815041 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 190318520312 in words is "one hundred ninety billion, three hundred eighteen million, five hundred twenty thousand, three hundred twelve".