1929090909292 has 6 divisors (see below), whose sum is σ = 3375909091268. Its totient is φ = 964545454644.

The previous prime is 1929090909289. The next prime is 1929090909299. The reversal of 1929090909292 is 2929090909291.

It is a self number, because there is not a number n which added to its sum of digits gives 1929090909292.

It is not an unprimeable number, because it can be changed into a prime (1929090909299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241136363658 + ... + 241136363665.

Almost surely, 2^{1929090909292} is an apocalyptic number.

It is an amenable number.

1929090909292 is a deficient number, since it is larger than the sum of its proper divisors (1446818181976).

1929090909292 is a wasteful number, since it uses less digits than its factorization.

1929090909292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482272727327 (or 482272727325 counting only the distinct ones).

The product of its (nonzero) digits is 4251528, while the sum is 61.

Subtracting 1929090909292 from its reverse (2929090909291), we obtain a palindrome (999999999999).

It can be divided in two parts, 1929090 and 909292, that added together give a palindrome (2838382).

The spelling of 1929090909292 in words is "one trillion, nine hundred twenty-nine billion, ninety million, nine hundred nine thousand, two hundred ninety-two".