29072128141 has 16 divisors (see below), whose sum is σ = 34161168256. Its totient is φ = 24218554176.

The previous prime is 29072128121. The next prime is 29072128147. The reversal of 29072128141 is 14182127092.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29072128141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29072128141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29072128147) 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, 173035 + ... + 296791.

It is an arithmetic number, because the mean of its divisors is an integer number (2135073016).

Almost surely, 2^29072128141 is an apocalyptic number.

It is an amenable number.

29072128141 is a deficient number, since it is larger than the sum of its proper divisors (5089040115).

29072128141 is a wasteful number, since it uses less digits than its factorization.

29072128141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124708.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 29072128141 in words is "twenty-nine billion, seventy-two million, one hundred twenty-eight thousand, one hundred forty-one".