29128612442 has 8 divisors (see below), whose sum is σ = 44758599732. Its totient is φ = 14209079200.

The previous prime is 29128612423. The next prime is 29128612451. The reversal of 29128612442 is 24421682192.

It can be written as a sum of positive squares in 2 ways, for example, as 29128590241 + 22201 = 170671^2 + 149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 29128612442.

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 3 ways as a sum of consecutive naturals, for example, 177613409 + ... + 177613572.

Almost surely, 2^29128612442 is an apocalyptic number.

29128612442 is a deficient number, since it is larger than the sum of its proper divisors (15629987290).

29128612442 is a wasteful number, since it uses less digits than its factorization.

29128612442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355227024.

The product of its digits is 110592, while the sum is 41.

The spelling of 29128612442 in words is "twenty-nine billion, one hundred twenty-eight million, six hundred twelve thousand, four hundred forty-two".