30519969680 has 20 divisors (see below), whose sum is σ = 70958929692. Its totient is φ = 12207987840.

The previous prime is 30519969673. The next prime is 30519969703. The reversal of 30519969680 is 8696991503.

It can be written as a sum of positive squares in 2 ways, for example, as 20382701824 + 10137267856 = 142768^2 + 100684^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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, 190749731 + ... + 190749890.

Almost surely, 2^30519969680 is an apocalyptic number.

It is an amenable number.

30519969680 is an abundant number, since it is smaller than the sum of its proper divisors (40438960012).

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

30519969680 is a wasteful number, since it uses less digits than its factorization.

30519969680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381499634 (or 381499628 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 30519969680 in words is "thirty billion, five hundred nineteen million, nine hundred sixty-nine thousand, six hundred eighty".