29132505138 has 16 divisors (see below), whose sum is σ = 63561829536. Its totient is φ = 8828031840.

The previous prime is 29132505137. The next prime is 29132505139. The reversal of 29132505138 is 83150523192.

It is an interprime number because it is at equal distance from previous prime (29132505137) and next prime (29132505139).

It is a junction number, because it is equal to n+sod(n) for n = 29132505096 and 29132505105.

It is not an unprimeable number, because it can be changed into a prime (29132505133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220700731 + ... + 220700862.

It is an arithmetic number, because the mean of its divisors is an integer number (3972614346).

Almost surely, 2^29132505138 is an apocalyptic number.

29132505138 is an abundant number, since it is smaller than the sum of its proper divisors (34429324398).

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

29132505138 is a wasteful number, since it uses less digits than its factorization.

29132505138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441401609.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 29132505138 in words is "twenty-nine billion, one hundred thirty-two million, five hundred five thousand, one hundred thirty-eight".