30711111939904 has 112 divisors (see below), whose sum is σ = 66585742977600. Its totient is φ = 13937945702400.

The previous prime is 30711111939751. The next prime is 30711111939919. The reversal of 30711111939904 is 40993911111703.

It is a happy number.

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, 2402865994 + ... + 2402878774.

It is an arithmetic number, because the mean of its divisors is an integer number (594515562300).

Almost surely, 2^{30711111939904} 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 30711111939904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33292871488800).

30711111939904 is an abundant number, since it is smaller than the sum of its proper divisors (35874631037696).

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

30711111939904 is a wasteful number, since it uses less digits than its factorization.

30711111939904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17832 (or 17822 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 49.

The spelling of 30711111939904 in words is "thirty trillion, seven hundred eleven billion, one hundred eleven million, nine hundred thirty-nine thousand, nine hundred four".