82649650657 has 8 divisors (see below), whose sum is σ = 96653412416. Its totient is φ = 69195056112.

The previous prime is 82649650651. The next prime is 82649650661. The reversal of 82649650657 is 75605694628.

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

It is not a de Polignac number, because 82649650657 - 2³ = 82649650649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82649650651) 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, 137291478 + ... + 137292079.

It is an arithmetic number, because the mean of its divisors is an integer number (12081676552).

Almost surely, 2^82649650657 is an apocalyptic number.

It is an amenable number.

82649650657 is a deficient number, since it is larger than the sum of its proper divisors (14003761759).

82649650657 is a wasteful number, since it uses less digits than its factorization.

82649650657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274583607.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 82649650657 in words is "eighty-two billion, six hundred forty-nine million, six hundred fifty thousand, six hundred fifty-seven".