30678732755 has 16 divisors (see below), whose sum is σ = 42275001600. Its totient is φ = 21137499360.

The previous prime is 30678732727. The next prime is 30678732761. The reversal of 30678732755 is 55723787603.

It is a happy number.

It is not a de Polignac number, because 30678732755 - 2¹² = 30678728659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30678732697 and 30678732706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14677775 + ... + 14679864.

It is an arithmetic number, because the mean of its divisors is an integer number (2642187600).

Almost surely, 2^30678732755 is an apocalyptic number.

30678732755 is a deficient number, since it is larger than the sum of its proper divisors (11596268845).

30678732755 is a wasteful number, since it uses less digits than its factorization.

30678732755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29357674.

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 30678732755 in words is "thirty billion, six hundred seventy-eight million, seven hundred thirty-two thousand, seven hundred fifty-five".