29189816653 has 2 divisors, whose sum is σ = 29189816654. Its totient is φ = 29189816652.

The previous prime is 29189816633. The next prime is 29189816657. The reversal of 29189816653 is 35661898192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28174629609 + 1015187044 = 167853^2 + 31862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29189816653 is a prime.

It is a super-2 number, since 2×29189816653² (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 (29189816657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14594908326 + 14594908327.

It is an arithmetic number, because the mean of its divisors is an integer number (14594908327).

Almost surely, 2^29189816653 is an apocalyptic number.

It is an amenable number.

29189816653 is a deficient number, since it is larger than the sum of its proper divisors (1).

29189816653 is an equidigital number, since it uses as much as digits as its factorization.

29189816653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 58.

The spelling of 29189816653 in words is "twenty-nine billion, one hundred eighty-nine million, eight hundred sixteen thousand, six hundred fifty-three".