30471549418 has 4 divisors (see below), whose sum is σ = 45707324130. Its totient is φ = 15235774708.

The previous prime is 30471549413. The next prime is 30471549509. The reversal of 30471549418 is 81494517403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81494517403 = 13 ⋅6268809031.

It can be written as a sum of positive squares in only one way, i.e., 18647814249 + 11823735169 = 136557^2 + 108737^2 .

It is a super-2 number, since 2×30471549418² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30471549413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7617887353 + ... + 7617887356.

Almost surely, 2^30471549418 is an apocalyptic number.

30471549418 is a deficient number, since it is larger than the sum of its proper divisors (15235774712).

30471549418 is a wasteful number, since it uses less digits than its factorization.

30471549418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15235774711.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 30471549418 in words is "thirty billion, four hundred seventy-one million, five hundred forty-nine thousand, four hundred eighteen".