39141991680 has 144 divisors (see below), whose sum is σ = 136374404544. Its totient is φ = 9488957440.

The previous prime is 39141991673. The next prime is 39141991699. The reversal of 39141991680 is 8619914193.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421089 + ... + 505568.

It is an arithmetic number, because the mean of its divisors is an integer number (947044476).

Almost surely, 2^39141991680 is an apocalyptic number.

39141991680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39141991680 is an abundant number, since it is smaller than the sum of its proper divisors (97232412864).

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

39141991680 is a wasteful number, since it uses less digits than its factorization.

39141991680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926692 (or 926678 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The spelling of 39141991680 in words is "thirty-nine billion, one hundred forty-one million, nine hundred ninety-one thousand, six hundred eighty".