30898138256 has 10 divisors (see below), whose sum is σ = 59865142902. Its totient is φ = 15449069120.

The previous prime is 30898138237. The next prime is 30898138267. The reversal of 30898138256 is 65283189803.

It can be written as a sum of positive squares in only one way, i.e., 23322176656 + 7575961600 = 152716^2 + 87040^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30898138198 and 30898138207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965566805 + ... + 965566836.

Almost surely, 2^30898138256 is an apocalyptic number.

It is an amenable number.

30898138256 is a deficient number, since it is larger than the sum of its proper divisors (28967004646).

30898138256 is a wasteful number, since it uses less digits than its factorization.

30898138256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931133649 (or 1931133643 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 30898138256 in words is "thirty billion, eight hundred ninety-eight million, one hundred thirty-eight thousand, two hundred fifty-six".