49374658561 has 2 divisors, whose sum is σ = 49374658562. Its totient is φ = 49374658560.

The previous prime is 49374658559. The next prime is 49374658573. The reversal of 49374658561 is 16585647394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48224160000 + 1150498561 = 219600^2 + 33919^2 .

It is a cyclic number.

It is not a de Polignac number, because 49374658561 - 2¹ = 49374658559 is a prime.

Together with 49374658559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 49374658496 and 49374658505.

It is not a weakly prime, because it can be changed into another prime (49374658511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24687329280 + 24687329281.

It is an arithmetic number, because the mean of its divisors is an integer number (24687329281).

Almost surely, 2^49374658561 is an apocalyptic number.

It is an amenable number.

49374658561 is a deficient number, since it is larger than the sum of its proper divisors (1).

49374658561 is an equidigital number, since it uses as much as digits as its factorization.

49374658561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 58.

The spelling of 49374658561 in words is "forty-nine billion, three hundred seventy-four million, six hundred fifty-eight thousand, five hundred sixty-one".