82390453542 has 12 divisors (see below), whose sum is σ = 178512649380. Its totient is φ = 27463484508.

The previous prime is 82390453517. The next prime is 82390453571. The reversal of 82390453542 is 24535409328.

82390453542 is a `hidden beast` number, since 8 + 23 + 90 + 4 + 535 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2288623692 + ... + 2288623727.

It is an arithmetic number, because the mean of its divisors is an integer number (14876054115).

Almost surely, 2^82390453542 is an apocalyptic number.

82390453542 is an abundant number, since it is smaller than the sum of its proper divisors (96122195838).

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

82390453542 is a wasteful number, since it uses less digits than its factorization.

82390453542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577247427 (or 4577247424 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 82390453542 in words is "eighty-two billion, three hundred ninety million, four hundred fifty-three thousand, five hundred forty-two".