30506470373 has 4 divisors (see below), whose sum is σ = 31250530668. Its totient is φ = 29762410080.

The previous prime is 30506470343. The next prime is 30506470381. The reversal of 30506470373 is 37307460503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37307460503 = 3329 ⋅11206807.

It can be written as a sum of positive squares in 2 ways, for example, as 7573002529 + 22933467844 = 87023^2 + 151438^2 .

It is a cyclic number.

It is not a de Polignac number, because 30506470373 - 2⁸ = 30506470117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30506470333) 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, 372030086 + ... + 372030167.

It is an arithmetic number, because the mean of its divisors is an integer number (7812632667).

Almost surely, 2^30506470373 is an apocalyptic number.

It is an amenable number.

30506470373 is a deficient number, since it is larger than the sum of its proper divisors (744060295).

30506470373 is an equidigital number, since it uses as much as digits as its factorization.

30506470373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744060294.

The product of its (nonzero) digits is 158760, while the sum is 38.

The spelling of 30506470373 in words is "thirty billion, five hundred six million, four hundred seventy thousand, three hundred seventy-three".