39429894053651 has 2 divisors, whose sum is σ = 39429894053652. Its totient is φ = 39429894053650.

The previous prime is 39429894053593. The next prime is 39429894053677. The reversal of 39429894053651 is 15635049892493.

It is a strong prime.

It is an emirp because it is prime and its reverse (15635049892493) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39429894053651 is a prime.

It is not a weakly prime, because it can be changed into another prime (39429894043651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19714947026825 + 19714947026826.

It is an arithmetic number, because the mean of its divisors is an integer number (19714947026826).

Almost surely, 2^{39429894053651} is an apocalyptic number.

39429894053651 is a deficient number, since it is larger than the sum of its proper divisors (1).

39429894053651 is an equidigital number, since it uses as much as digits as its factorization.

39429894053651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 251942400, while the sum is 68.

The spelling of 39429894053651 in words is "thirty-nine trillion, four hundred twenty-nine billion, eight hundred ninety-four million, fifty-three thousand, six hundred fifty-one".