191929001252 has 6 divisors (see below), whose sum is σ = 335875752198. Its totient is φ = 95964500624.

The previous prime is 191929001213. The next prime is 191929001269. The reversal of 191929001252 is 252100929191.

191929001252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 128347361536 + 63581639716 = 358256^2 + 252154^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23991125153 + ... + 23991125160.

It is an arithmetic number, because the mean of its divisors is an integer number (55979292033).

Almost surely, 2^191929001252 is an apocalyptic number.

It is an amenable number.

191929001252 is a deficient number, since it is larger than the sum of its proper divisors (143946750946).

191929001252 is a wasteful number, since it uses less digits than its factorization.

191929001252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47982250317 (or 47982250315 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 191929001252 in words is "one hundred ninety-one billion, nine hundred twenty-nine million, one thousand, two hundred fifty-two".