29256959129 has 6 divisors (see below), whose sum is σ = 29971665486. Its totient is φ = 28542306240.

The previous prime is 29256959101. The next prime is 29256959143. The reversal of 29256959129 is 92195965292.

It can be written as a sum of positive squares in 3 ways, for example, as 13566891529 + 15690067600 = 116477^2 + 125260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29256959129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29259959129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1081877 + ... + 1108589.

It is an arithmetic number, because the mean of its divisors is an integer number (4995277581).

Almost surely, 2^29256959129 is an apocalyptic number.

It is an amenable number.

29256959129 is a deficient number, since it is larger than the sum of its proper divisors (714706357).

29256959129 is an frugal number, since it uses more digits than its factorization.

29256959129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53467 (or 26754 counting only the distinct ones).

The product of its digits is 7873200, while the sum is 59.

The spelling of 29256959129 in words is "twenty-nine billion, two hundred fifty-six million, nine hundred fifty-nine thousand, one hundred twenty-nine".