29045050021 has 32 divisors (see below), whose sum is σ = 32974139520. Its totient is φ = 25395552000.

The previous prime is 29045049977. The next prime is 29045050037. The reversal of 29045050021 is 12005054092.

It is not a de Polignac number, because 29045050021 - 2⁷ = 29045049893 is a prime.

It is a super-2 number, since 2×29045050021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29045050051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10186246 + ... + 10189096.

It is an arithmetic number, because the mean of its divisors is an integer number (1030441860).

Almost surely, 2^29045050021 is an apocalyptic number.

It is an amenable number.

29045050021 is a deficient number, since it is larger than the sum of its proper divisors (3929089499).

29045050021 is a wasteful number, since it uses less digits than its factorization.

29045050021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 29045050021 in words is "twenty-nine billion, forty-five million, fifty thousand, twenty-one".