30772988067 has 4 divisors (see below), whose sum is σ = 41030650760. Its totient is φ = 20515325376.

The previous prime is 30772988063. The next prime is 30772988083. The reversal of 30772988067 is 76088927703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76088927703 = 3 ⋅25362975901.

It is not a de Polignac number, because 30772988067 - 2² = 30772988063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30772987998 and 30772988016.

It is not an unprimeable number, because it can be changed into a prime (30772988063) 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, 5128831342 + ... + 5128831347.

It is an arithmetic number, because the mean of its divisors is an integer number (10257662690).

Almost surely, 2^30772988067 is an apocalyptic number.

30772988067 is a deficient number, since it is larger than the sum of its proper divisors (10257662693).

30772988067 is a wasteful number, since it uses less digits than its factorization.

30772988067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10257662692.

The product of its (nonzero) digits is 7112448, while the sum is 57.

The spelling of 30772988067 in words is "thirty billion, seven hundred seventy-two million, nine hundred eighty-eight thousand, sixty-seven".