30506898780732 has 96 divisors (see below), whose sum is σ = 77817718831104. Its totient is φ = 9225033163200.

The previous prime is 30506898780703. The next prime is 30506898780763. The reversal of 30506898780732 is 23708789860503.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138806073 + ... + 139025679.

It is an arithmetic number, because the mean of its divisors is an integer number (810601237824).

Almost surely, 2^{30506898780732} is an apocalyptic number.

It is an amenable number.

30506898780732 is an abundant number, since it is smaller than the sum of its proper divisors (47310820050372).

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

30506898780732 is a wasteful number, since it uses less digits than its factorization.

30506898780732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221839 (or 221837 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 66.

The spelling of 30506898780732 in words is "thirty trillion, five hundred six billion, eight hundred ninety-eight million, seven hundred eighty thousand, seven hundred thirty-two".