29155250643 has 8 divisors (see below), whose sum is σ = 39421184256. Its totient is φ = 19163075400.

The previous prime is 29155250629. The next prime is 29155250647. The reversal of 29155250643 is 34605255192.

It is a happy number.

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

It is not a de Polignac number, because 29155250643 - 2⁵ = 29155250611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29155250595 and 29155250604.

It is not an unprimeable number, because it can be changed into a prime (29155250647) 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 7 ways as a sum of consecutive naturals, for example, 68439343 + ... + 68439768.

It is an arithmetic number, because the mean of its divisors is an integer number (4927648032).

Almost surely, 2^29155250643 is an apocalyptic number.

29155250643 is a deficient number, since it is larger than the sum of its proper divisors (10265933613).

29155250643 is a wasteful number, since it uses less digits than its factorization.

29155250643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136879185.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 29155250643 in words is "twenty-nine billion, one hundred fifty-five million, two hundred fifty thousand, six hundred forty-three".