648196435299576 has 32 divisors (see below), whose sum is σ = 1620492281960400. Its totient is φ = 216065319271680.

The previous prime is 648196435299503. The next prime is 648196435299593. The reversal of 648196435299576 is 675992534691846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25956396 + ... + 44386116.

Almost surely, 2^{648196435299576} is an apocalyptic number.

It is an amenable number.

648196435299576 is an abundant number, since it is smaller than the sum of its proper divisors (972295846660824).

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

648196435299576 is a wasteful number, since it uses less digits than its factorization.

648196435299576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19895199 (or 19895195 counting only the distinct ones).

The product of its digits is 21163161600, while the sum is 84.

The spelling of 648196435299576 in words is "six hundred forty-eight trillion, one hundred ninety-six billion, four hundred thirty-five million, two hundred ninety-nine thousand, five hundred seventy-six".