30627768961 has 4 divisors (see below), whose sum is σ = 30725621572. Its totient is φ = 30529916352.

The previous prime is 30627768929. The next prime is 30627768989. The reversal of 30627768961 is 16986772603.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12137208561 + 18490560400 = 110169^2 + 135980^2 .

It is a cyclic number.

It is not a de Polignac number, because 30627768961 - 2⁵ = 30627768929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30627768911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48925836 + ... + 48926461.

It is an arithmetic number, because the mean of its divisors is an integer number (7681405393).

Almost surely, 2^30627768961 is an apocalyptic number.

It is an amenable number.

30627768961 is a deficient number, since it is larger than the sum of its proper divisors (97852611).

30627768961 is an equidigital number, since it uses as much as digits as its factorization.

30627768961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97852610.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 30627768961 in words is "thirty billion, six hundred twenty-seven million, seven hundred sixty-eight thousand, nine hundred sixty-one".