30472988047 has 4 divisors (see below), whose sum is σ = 30501656080. Its totient is φ = 30444320016.

The previous prime is 30472987933. The next prime is 30472988071. The reversal of 30472988047 is 74088927403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74088927403 = 449 ⋅165008747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30472988047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30472987985 and 30472988003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30472908047) 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, 14332422 + ... + 14334547.

It is an arithmetic number, because the mean of its divisors is an integer number (7625414020).

Almost surely, 2^30472988047 is an apocalyptic number.

30472988047 is a deficient number, since it is larger than the sum of its proper divisors (28668033).

30472988047 is a wasteful number, since it uses less digits than its factorization.

30472988047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28668032.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 30472988047 in words is "thirty billion, four hundred seventy-two million, nine hundred eighty-eight thousand, forty-seven".