1992912951228 has 12 divisors (see below), whose sum is σ = 4650130219560. Its totient is φ = 664304317072.

The previous prime is 1992912951181. The next prime is 1992912951229. The reversal of 1992912951228 is 8221592192991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992912951229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83038039623 + ... + 83038039646.

It is an arithmetic number, because the mean of its divisors is an integer number (387510851630).

Almost surely, 2^{1992912951228} is an apocalyptic number.

It is an amenable number.

1992912951228 is an abundant number, since it is smaller than the sum of its proper divisors (2657217268332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992912951228 is a wasteful number, since it uses less digits than its factorization.

1992912951228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166076079276 (or 166076079274 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 60.

The spelling of 1992912951228 in words is "one trillion, nine hundred ninety-two billion, nine hundred twelve million, nine hundred fifty-one thousand, two hundred twenty-eight".