80819742909006 has 12 divisors (see below), whose sum is σ = 175109442969552. Its totient is φ = 26939914302996.

The previous prime is 80819742909001. The next prime is 80819742909043. The reversal of 80819742909006 is 60090924791808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80819742909001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2244992858566 + ... + 2244992858601.

It is an arithmetic number, because the mean of its divisors is an integer number (14592453580796).

Almost surely, 2^{80819742909006} is an apocalyptic number.

80819742909006 is an abundant number, since it is smaller than the sum of its proper divisors (94289700060546).

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

80819742909006 is a wasteful number, since it uses less digits than its factorization.

80819742909006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489985717175 (or 4489985717172 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 80819742909006 in words is "eighty trillion, eight hundred nineteen billion, seven hundred forty-two million, nine hundred nine thousand, six".