29142004972621 has 2 divisors, whose sum is σ = 29142004972622. Its totient is φ = 29142004972620.

The previous prime is 29142004972583. The next prime is 29142004972627. The reversal of 29142004972621 is 12627940024192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25447686484900 + 3694318487721 = 5044570^2 + 1922061^2 .

It is a cyclic number.

It is not a de Polignac number, because 29142004972621 - 2²⁹ = 29141468101709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29142004972627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14571002486310 + 14571002486311.

It is an arithmetic number, because the mean of its divisors is an integer number (14571002486311).

Almost surely, 2^{29142004972621} is an apocalyptic number.

It is an amenable number.

29142004972621 is a deficient number, since it is larger than the sum of its proper divisors (1).

29142004972621 is an equidigital number, since it uses as much as digits as its factorization.

29142004972621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 29142004972621 in words is "twenty-nine trillion, one hundred forty-two billion, four million, nine hundred seventy-two thousand, six hundred twenty-one".