6681772513904 has 20 divisors (see below), whose sum is σ = 13074111815640. Its totient is φ = 3307808174400.

The previous prime is 6681772513891. The next prime is 6681772513919. The reversal of 6681772513904 is 4093152771866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067378494 + ... + 2067381725.

It is an arithmetic number, because the mean of its divisors is an integer number (653705590782).

It is a 1-persistent number, because it is pandigital, but 2⋅6681772513904 = 13363545027808 is not.

Almost surely, 2^{6681772513904} is an apocalyptic number.

It is an amenable number.

6681772513904 is a deficient number, since it is larger than the sum of its proper divisors (6392339301736).

6681772513904 is a wasteful number, since it uses less digits than its factorization.

6681772513904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134760328 (or 4134760322 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 6681772513904 in words is "six trillion, six hundred eighty-one billion, seven hundred seventy-two million, five hundred thirteen thousand, nine hundred four".