29135677042561 has 8 divisors (see below), whose sum is σ = 30269713317480. Its totient is φ = 28010264618112.

The previous prime is 29135677042559. The next prime is 29135677042603. The reversal of 29135677042561 is 16524077653192.

It can be written as a sum of positive squares in 4 ways, for example, as 8007451105536 + 21128225937025 = 2829744^2 + 4596545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29135677042561 - 2¹ = 29135677042559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29135677042496 and 29135677042505.

It is not an unprimeable number, because it can be changed into a prime (29135677042261) 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, 2155955730 + ... + 2155969243.

It is an arithmetic number, because the mean of its divisors is an integer number (3783714164685).

Almost surely, 2^{29135677042561} is an apocalyptic number.

It is an amenable number.

29135677042561 is a deficient number, since it is larger than the sum of its proper divisors (1134036274919).

29135677042561 is a wasteful number, since it uses less digits than its factorization.

29135677042561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311925235.

The product of its (nonzero) digits is 19051200, while the sum is 58.

The spelling of 29135677042561 in words is "twenty-nine trillion, one hundred thirty-five billion, six hundred seventy-seven million, forty-two thousand, five hundred sixty-one".