30693856704 has 112 divisors (see below), whose sum is σ = 93404179968. Its totient is φ = 8713755648.

The previous prime is 30693856639. The next prime is 30693856733. The reversal of 30693856704 is 40765839603.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×30693856704² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138277 + ... + 283739.

Almost surely, 2^30693856704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30693856704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46702089984).

30693856704 is an abundant number, since it is smaller than the sum of its proper divisors (62710323264).

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

30693856704 is a wasteful number, since it uses less digits than its factorization.

30693856704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145642 (or 145632 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 30693856704 in words is "thirty billion, six hundred ninety-three million, eight hundred fifty-six thousand, seven hundred four".