30105540128474 has 4 divisors (see below), whose sum is σ = 45158310192714. Its totient is φ = 15052770064236.

The previous prime is 30105540128441. The next prime is 30105540128479. The reversal of 30105540128474 is 47482104550103.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30105051055249 + 489073225 = 5486807^2 + 22115^2 .

It is not an unprimeable number, because it can be changed into a prime (30105540128479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7526385032117 + ... + 7526385032120.

Almost surely, 2^{30105540128474} is an apocalyptic number.

30105540128474 is a deficient number, since it is larger than the sum of its proper divisors (15052770064240).

30105540128474 is a wasteful number, since it uses less digits than its factorization.

30105540128474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052770064239.

The product of its (nonzero) digits is 537600, while the sum is 44.

Adding to 30105540128474 its reverse (47482104550103), we get a palindrome (77587644678577).

The spelling of 30105540128474 in words is "thirty trillion, one hundred five billion, five hundred forty million, one hundred twenty-eight thousand, four hundred seventy-four".