83645629648 has 20 divisors (see below), whose sum is σ = 185215323040. Its totient is φ = 35848126944.

The previous prime is 83645629637. The next prime is 83645629679. The reversal of 83645629648 is 84692654638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373417878 + ... + 373418101.

It is an arithmetic number, because the mean of its divisors is an integer number (9260766152).

Almost surely, 2^83645629648 is an apocalyptic number.

It is an amenable number.

83645629648 is an abundant number, since it is smaller than the sum of its proper divisors (101569693392).

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

83645629648 is a wasteful number, since it uses less digits than its factorization.

83645629648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746835994 (or 746835988 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 61.

The spelling of 83645629648 in words is "eighty-three billion, six hundred forty-five million, six hundred twenty-nine thousand, six hundred forty-eight".