29902928009 has 2 divisors, whose sum is σ = 29902928010. Its totient is φ = 29902928008.

The previous prime is 29902927997. The next prime is 29902928047. The reversal of 29902928009 is 90082920992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15327678025 + 14575249984 = 123805^2 + 120728^2 .

It is a cyclic number.

It is not a de Polignac number, because 29902928009 - 2¹² = 29902923913 is a prime.

It is a super-2 number, since 2×29902928009² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29902928059) 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 as a sum of consecutive naturals, namely, 14951464004 + 14951464005.

It is an arithmetic number, because the mean of its divisors is an integer number (14951464005).

Almost surely, 2^29902928009 is an apocalyptic number.

It is an amenable number.

29902928009 is a deficient number, since it is larger than the sum of its proper divisors (1).

29902928009 is an equidigital number, since it uses as much as digits as its factorization.

29902928009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 50.

The spelling of 29902928009 in words is "twenty-nine billion, nine hundred two million, nine hundred twenty-eight thousand, nine".