49721080693 has 2 divisors, whose sum is σ = 49721080694. Its totient is φ = 49721080692.

The previous prime is 49721080631. The next prime is 49721080697. The reversal of 49721080693 is 39608012794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32631532164 + 17089548529 = 180642^2 + 130727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49721080693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49721080697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24860540346 + 24860540347.

It is an arithmetic number, because the mean of its divisors is an integer number (24860540347).

Almost surely, 2^49721080693 is an apocalyptic number.

It is an amenable number.

49721080693 is a deficient number, since it is larger than the sum of its proper divisors (1).

49721080693 is an equidigital number, since it uses as much as digits as its factorization.

49721080693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 49721080693 in words is "forty-nine billion, seven hundred twenty-one million, eighty thousand, six hundred ninety-three".