29661289760987 has 2 divisors, whose sum is σ = 29661289760988. Its totient is φ = 29661289760986.

The previous prime is 29661289760969. The next prime is 29661289761083. The reversal of 29661289760987 is 78906798216692.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29661289760987 - 2¹⁶ = 29661289695451 is a prime.

It is a super-2 number, since 2×29661289760987² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29661289760287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14830644880493 + 14830644880494.

It is an arithmetic number, because the mean of its divisors is an integer number (14830644880494).

Almost surely, 2^{29661289760987} is an apocalyptic number.

29661289760987 is a deficient number, since it is larger than the sum of its proper divisors (1).

29661289760987 is an equidigital number, since it uses as much as digits as its factorization.

29661289760987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975228416, while the sum is 80.

The spelling of 29661289760987 in words is "twenty-nine trillion, six hundred sixty-one billion, two hundred eighty-nine million, seven hundred sixty thousand, nine hundred eighty-seven".