29901542450 has 24 divisors (see below), whose sum is σ = 59895090948. Its totient is φ = 11040569280.

The previous prime is 29901542431. The next prime is 29901542477. The reversal of 29901542450 is 5424510992.

It can be written as a sum of positive squares in 6 ways, for example, as 14284791361 + 15616751089 = 119519^2 + 124967^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 29901542398 and 29901542407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23000537 + ... + 23001836.

Almost surely, 2^29901542450 is an apocalyptic number.

29901542450 is an abundant number, since it is smaller than the sum of its proper divisors (29993548498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29901542450 is a wasteful number, since it uses less digits than its factorization.

29901542450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46002398 (or 46002393 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 29901542450 in words is "twenty-nine billion, nine hundred one million, five hundred forty-two thousand, four hundred fifty".