30786408976 has 20 divisors (see below), whose sum is σ = 59653996012. Its totient is φ = 15391829376.

The previous prime is 30786408967. The next prime is 30786408979. The reversal of 30786408976 is 67980468703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1167998976 + 29618410000 = 34176^2 + 172100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30786408976.

It is not an unprimeable number, because it can be changed into a prime (30786408979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112666 + ... + 272518.

Almost surely, 2^30786408976 is an apocalyptic number.

It is an amenable number.

30786408976 is a deficient number, since it is larger than the sum of its proper divisors (28867587036).

30786408976 is a wasteful number, since it uses less digits than its factorization.

30786408976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171898 (or 171892 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 30786408976 in words is "thirty billion, seven hundred eighty-six million, four hundred eight thousand, nine hundred seventy-six".