30161688673 has 4 divisors (see below), whose sum is σ = 30164220208. Its totient is φ = 30159157140.

The previous prime is 30161688653. The next prime is 30161688691. The reversal of 30161688673 is 37688616103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30161688673 - 2²¹ = 30159591521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30161688653) 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, 1247811 + ... + 1271752.

It is an arithmetic number, because the mean of its divisors is an integer number (7541055052).

Almost surely, 2^30161688673 is an apocalyptic number.

It is an amenable number.

30161688673 is a deficient number, since it is larger than the sum of its proper divisors (2531535).

30161688673 is a wasteful number, since it uses less digits than its factorization.

30161688673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531534.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 30161688673 in words is "thirty billion, one hundred sixty-one million, six hundred eighty-eight thousand, six hundred seventy-three".