30231729888 has 24 divisors (see below), whose sum is σ = 79358291208. Its totient is φ = 10077243264.

The previous prime is 30231729877. The next prime is 30231729907. The reversal of 30231729888 is 88892713203.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30231729888.

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, 157456831 + ... + 157457022.

It is an arithmetic number, because the mean of its divisors is an integer number (3306595467).

Almost surely, 2^30231729888 is an apocalyptic number.

It is an amenable number.

30231729888 is an abundant number, since it is smaller than the sum of its proper divisors (49126561320).

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

30231729888 is a wasteful number, since it uses less digits than its factorization.

30231729888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314913866 (or 314913858 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 30231729888 in words is "thirty billion, two hundred thirty-one million, seven hundred twenty-nine thousand, eight hundred eighty-eight".