29932139789 has 2 divisors, whose sum is σ = 29932139790. Its totient is φ = 29932139788.

The previous prime is 29932139773. The next prime is 29932139813. The reversal of 29932139789 is 98793123992.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29882999689 + 49140100 = 172867^2 + 7010^2 .

It is a cyclic number.

It is not a de Polignac number, because 29932139789 - 2⁴ = 29932139773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29932139729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14966069894 + 14966069895.

It is an arithmetic number, because the mean of its divisors is an integer number (14966069895).

Almost surely, 2^29932139789 is an apocalyptic number.

It is an amenable number.

29932139789 is a deficient number, since it is larger than the sum of its proper divisors (1).

29932139789 is an equidigital number, since it uses as much as digits as its factorization.

29932139789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13226976, while the sum is 62.

The spelling of 29932139789 in words is "twenty-nine billion, nine hundred thirty-two million, one hundred thirty-nine thousand, seven hundred eighty-nine".