30707683848 has 80 divisors (see below), whose sum is σ = 91069389180. Its totient is φ = 9633779712.

The previous prime is 30707683841. The next prime is 30707683849. The reversal of 30707683848 is 84838670703.

It can be written as a sum of positive squares in 2 ways, for example, as 23735099844 + 6972584004 = 154062^2 + 83502^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 30707683794 and 30707683803.

It is not an unprimeable number, because it can be changed into a prime (30707683841) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1382761 + ... + 1404792.

Almost surely, 2^30707683848 is an apocalyptic number.

It is an amenable number.

30707683848 is an abundant number, since it is smaller than the sum of its proper divisors (60361705332).

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

30707683848 is a wasteful number, since it uses less digits than its factorization.

30707683848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787588 (or 2787575 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 30707683848 in words is "thirty billion, seven hundred seven million, six hundred eighty-three thousand, eight hundred forty-eight".