30778420580 has 12 divisors (see below), whose sum is σ = 64634683260. Its totient is φ = 12311368224.

The previous prime is 30778420567. The next prime is 30778420591. The reversal of 30778420580 is 8502487703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16133064256 + 14645356324 = 127016^2 + 121018^2 .

It is a super-2 number, since 2×30778420580² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769460495 + ... + 769460534.

It is an arithmetic number, because the mean of its divisors is an integer number (5386223605).

Almost surely, 2^30778420580 is an apocalyptic number.

It is an amenable number.

30778420580 is an abundant number, since it is smaller than the sum of its proper divisors (33856262680).

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

30778420580 is a wasteful number, since it uses less digits than its factorization.

30778420580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538921038 (or 1538921036 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 30778420580 in words is "thirty billion, seven hundred seventy-eight million, four hundred twenty thousand, five hundred eighty".