29138771061 has 64 divisors (see below), whose sum is σ = 46046880000. Its totient is φ = 18176368896.

The previous prime is 29138771029. The next prime is 29138771083. The reversal of 29138771061 is 16017783192.

It is not a de Polignac number, because 29138771061 - 2⁵ = 29138771029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29138770998 and 29138771016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29138771021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7791330 + ... + 7795068.

It is an arithmetic number, because the mean of its divisors is an integer number (719482500).

Almost surely, 2^29138771061 is an apocalyptic number.

It is an amenable number.

29138771061 is a deficient number, since it is larger than the sum of its proper divisors (16908108939).

29138771061 is a wasteful number, since it uses less digits than its factorization.

29138771061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4083 (or 4077 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 29138771061 in words is "twenty-nine billion, one hundred thirty-eight million, seven hundred seventy-one thousand, sixty-one".