49696345637989 has 2 divisors, whose sum is σ = 49696345637990. Its totient is φ = 49696345637988.

The previous prime is 49696345637977. The next prime is 49696345638001. The reversal of 49696345637989 is 98973654369694.

It is a balanced prime because it is at equal distance from previous prime (49696345637977) and next prime (49696345638001).

It can be written as a sum of positive squares in only one way, i.e., 25072222085089 + 24624123552900 = 5007217^2 + 4962270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49696345637989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49696345637689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24848172818994 + 24848172818995.

It is an arithmetic number, because the mean of its divisors is an integer number (24848172818995).

Almost surely, 2^{49696345637989} is an apocalyptic number.

It is an amenable number.

49696345637989 is a deficient number, since it is larger than the sum of its proper divisors (1).

49696345637989 is an equidigital number, since it uses as much as digits as its factorization.

49696345637989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57140536320, while the sum is 88.

The spelling of 49696345637989 in words is "forty-nine trillion, six hundred ninety-six billion, three hundred forty-five million, six hundred thirty-seven thousand, nine hundred eighty-nine".