29914090781 has 2 divisors, whose sum is σ = 29914090782. Its totient is φ = 29914090780.

The previous prime is 29914090769. The next prime is 29914090793. The reversal of 29914090781 is 18709041992.

It is a balanced prime because it is at equal distance from previous prime (29914090769) and next prime (29914090793).

It can be written as a sum of positive squares in only one way, i.e., 26663950681 + 3250140100 = 163291^2 + 57010^2 .

It is a cyclic number.

It is not a de Polignac number, because 29914090781 - 2¹⁰ = 29914089757 is a prime.

It is a super-2 number, since 2×29914090781² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29914090741) 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, 14957045390 + 14957045391.

It is an arithmetic number, because the mean of its divisors is an integer number (14957045391).

Almost surely, 2^29914090781 is an apocalyptic number.

It is an amenable number.

29914090781 is a deficient number, since it is larger than the sum of its proper divisors (1).

29914090781 is an equidigital number, since it uses as much as digits as its factorization.

29914090781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 29914090781 in words is "twenty-nine billion, nine hundred fourteen million, ninety thousand, seven hundred eighty-one".