29428668050 has 12 divisors (see below), whose sum is σ = 54737322666. Its totient is φ = 11771467200.

The previous prime is 29428668037. The next prime is 29428668079. The reversal of 29428668050 is 5086682492.

It can be written as a sum of positive squares in 3 ways, for example, as 27766556689 + 1662111361 = 166633^2 + 40769^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 588573361 = 29428668050 / (2 + 9 + 4 + 2 + 8 + 6 + 6 + 8 + 0 + 5 + 0).

It is a self number, because there is not a number n which added to its sum of digits gives 29428668050.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 294286631 + ... + 294286730.

Almost surely, 2^29428668050 is an apocalyptic number.

29428668050 is a deficient number, since it is larger than the sum of its proper divisors (25308654616).

29428668050 is a wasteful number, since it uses less digits than its factorization.

29428668050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588573373 (or 588573368 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The spelling of 29428668050 in words is "twenty-nine billion, four hundred twenty-eight million, six hundred sixty-eight thousand, fifty".