20191009292 has 12 divisors (see below), whose sum is σ = 35347055520. Its totient is φ = 10091850576.

The previous prime is 20191009273. The next prime is 20191009303. The reversal of 20191009292 is 29290019102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901067 + ... + 923202.

It is an arithmetic number, because the mean of its divisors is an integer number (2945587960).

Almost surely, 2^20191009292 is an apocalyptic number.

It is an amenable number.

20191009292 is a deficient number, since it is larger than the sum of its proper divisors (15156046228).

20191009292 is a wasteful number, since it uses less digits than its factorization.

20191009292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827040 (or 1827038 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 20191009292 in words is "twenty billion, one hundred ninety-one million, nine thousand, two hundred ninety-two".