49893063893 has 2 divisors, whose sum is σ = 49893063894. Its totient is φ = 49893063892.

The previous prime is 49893063859. The next prime is 49893063931. The reversal of 49893063893 is 39836039894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49229846884 + 663217009 = 221878^2 + 25753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49893063893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49893063823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24946531946 + 24946531947.

It is an arithmetic number, because the mean of its divisors is an integer number (24946531947).

Almost surely, 2^49893063893 is an apocalyptic number.

It is an amenable number.

49893063893 is a deficient number, since it is larger than the sum of its proper divisors (1).

49893063893 is an equidigital number, since it uses as much as digits as its factorization.

49893063893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30233088, while the sum is 62.

The spelling of 49893063893 in words is "forty-nine billion, eight hundred ninety-three million, sixty-three thousand, eight hundred ninety-three".