30729086560 has 96 divisors (see below), whose sum is σ = 74377239552. Its totient is φ = 11991006720.

The previous prime is 30729086513. The next prime is 30729086617. The reversal of 30729086560 is 6568092703.

It is a self number, because there is not a number n which added to its sum of digits gives 30729086560.

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, 6815827 + ... + 6820333.

It is an arithmetic number, because the mean of its divisors is an integer number (774762912).

Almost surely, 2^30729086560 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 30729086560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37188619776).

30729086560 is an abundant number, since it is smaller than the sum of its proper divisors (43648152992).

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

30729086560 is a wasteful number, since it uses less digits than its factorization.

30729086560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556 (or 5548 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 30729086560 in words is "thirty billion, seven hundred twenty-nine million, eighty-six thousand, five hundred sixty".