82667542993 has 8 divisors (see below), whose sum is σ = 94484818688. Its totient is φ = 70852173984.

The previous prime is 82667542987. The next prime is 82667543009. The reversal of 82667542993 is 39924576628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82667542993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82667542093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382521 + ... + 558262.

It is an arithmetic number, because the mean of its divisors is an integer number (11810602336).

Almost surely, 2^82667542993 is an apocalyptic number.

It is an amenable number.

82667542993 is a deficient number, since it is larger than the sum of its proper divisors (11817275695).

82667542993 is a wasteful number, since it uses less digits than its factorization.

82667542993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953343.

The product of its digits is 39191040, while the sum is 61.

The spelling of 82667542993 in words is "eighty-two billion, six hundred sixty-seven million, five hundred forty-two thousand, nine hundred ninety-three".