49720602697 has 2 divisors, whose sum is σ = 49720602698. Its totient is φ = 49720602696.

The previous prime is 49720602677. The next prime is 49720602703. The reversal of 49720602697 is 79620602794.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49719634441 + 968256 = 222979^2 + 984^2 .

It is a cyclic number.

It is not a de Polignac number, because 49720602697 - 2¹¹ = 49720600649 is a prime.

It is not a weakly prime, because it can be changed into another prime (49720602677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24860301348 + 24860301349.

It is an arithmetic number, because the mean of its divisors is an integer number (24860301349).

Almost surely, 2^49720602697 is an apocalyptic number.

It is an amenable number.

49720602697 is a deficient number, since it is larger than the sum of its proper divisors (1).

49720602697 is an equidigital number, since it uses as much as digits as its factorization.

49720602697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 49720602697 in words is "forty-nine billion, seven hundred twenty million, six hundred two thousand, six hundred ninety-seven".