30986780358 has 16 divisors (see below), whose sum is σ = 62092063296. Its totient is φ = 10309176360.

The previous prime is 30986780333. The next prime is 30986780441. The reversal of 30986780358 is 85308768903.

It is a junction number, because it is equal to n+sod(n) for n = 30986780298 and 30986780307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4934208 + ... + 4940483.

It is an arithmetic number, because the mean of its divisors is an integer number (3880753956).

Almost surely, 2^30986780358 is an apocalyptic number.

30986780358 is an abundant number, since it is smaller than the sum of its proper divisors (31105282938).

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

30986780358 is a wasteful number, since it uses less digits than its factorization.

30986780358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9875219.

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 30986780358 in words is "thirty billion, nine hundred eighty-six million, seven hundred eighty thousand, three hundred fifty-eight".