29421851442 has 32 divisors (see below), whose sum is σ = 60778291200. Its totient is φ = 9485231760.

The previous prime is 29421851419. The next prime is 29421851447. The reversal of 29421851442 is 24415812492.

It is a junction number, because it is equal to n+sod(n) for n = 29421851394 and 29421851403.

It is not an unprimeable number, because it can be changed into a prime (29421851447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269463 + ... + 362565.

It is an arithmetic number, because the mean of its divisors is an integer number (1899321600).

Almost surely, 2^29421851442 is an apocalyptic number.

29421851442 is an abundant number, since it is smaller than the sum of its proper divisors (31356439758).

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

29421851442 is a wasteful number, since it uses less digits than its factorization.

29421851442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94838.

The product of its digits is 184320, while the sum is 42.

The spelling of 29421851442 in words is "twenty-nine billion, four hundred twenty-one million, eight hundred fifty-one thousand, four hundred forty-two".