30650315778 has 12 divisors (see below), whose sum is σ = 66409017558. Its totient is φ = 10216771920.

The previous prime is 30650315771. The next prime is 30650315807. The reversal of 30650315778 is 87751305603.

It can be written as a sum of positive squares in only one way, i.e., 28609354449 + 2040961329 = 169143^2 + 45177^2 .

It is a super-2 number, since 2×30650315778² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30650315771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851397643 + ... + 851397678.

Almost surely, 2^30650315778 is an apocalyptic number.

30650315778 is an abundant number, since it is smaller than the sum of its proper divisors (35758701780).

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

30650315778 is a wasteful number, since it uses less digits than its factorization.

30650315778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702795329 (or 1702795326 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 30650315778 in words is "thirty billion, six hundred fifty million, three hundred fifteen thousand, seven hundred seventy-eight".