30723891696 has 30 divisors (see below), whose sum is σ = 85984225080. Its totient is φ = 10241297184.

The previous prime is 30723891683. The next prime is 30723891719. The reversal of 30723891696 is 69619832703.

30723891696 is a `hidden beast` number, since 30 + 72 + 389 + 169 + 6 = 666.

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 5 ways as a sum of consecutive naturals, for example, 106680036 + ... + 106680323.

It is an arithmetic number, because the mean of its divisors is an integer number (2866140836).

Almost surely, 2^30723891696 is an apocalyptic number.

30723891696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30723891696 is an abundant number, since it is smaller than the sum of its proper divisors (55260333384).

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

30723891696 is a wasteful number, since it uses less digits than its factorization.

30723891696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213360373 (or 213360364 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 30723891696 in words is "thirty billion, seven hundred twenty-three million, eight hundred ninety-one thousand, six hundred ninety-six".