29139037789 has 4 divisors (see below), whose sum is σ = 29317805056. Its totient is φ = 28960270524.

The previous prime is 29139037771. The next prime is 29139037841. The reversal of 29139037789 is 98773093192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29139037789 - 2¹¹ = 29139035741 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 (29139047789) 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 3 ways as a sum of consecutive naturals, for example, 89383389 + ... + 89383714.

It is an arithmetic number, because the mean of its divisors is an integer number (7329451264).

Almost surely, 2^29139037789 is an apocalyptic number.

It is an amenable number.

29139037789 is a deficient number, since it is larger than the sum of its proper divisors (178767267).

29139037789 is a wasteful number, since it uses less digits than its factorization.

29139037789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178767266.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 29139037789 in words is "twenty-nine billion, one hundred thirty-nine million, thirty-seven thousand, seven hundred eighty-nine".