1930646975856 has 40 divisors (see below), whose sum is σ = 5280887318544. Its totient is φ = 605693168640.

The previous prime is 1930646975819. The next prime is 1930646975897. The reversal of 1930646975856 is 6585796460391.

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 7 ways as a sum of consecutive naturals, for example, 1182993655 + ... + 1182995286.

Almost surely, 2^{1930646975856} is an apocalyptic number.

1930646975856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1930646975856 is an abundant number, since it is smaller than the sum of its proper divisors (3350240342688).

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

1930646975856 is a wasteful number, since it uses less digits than its factorization.

1930646975856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365988969 (or 2365988963 counting only the distinct ones).

The product of its (nonzero) digits is 293932800, while the sum is 69.

The spelling of 1930646975856 in words is "one trillion, nine hundred thirty billion, six hundred forty-six million, nine hundred seventy-five thousand, eight hundred fifty-six".