49837744763509 has 2 divisors, whose sum is σ = 49837744763510. Its totient is φ = 49837744763508.

The previous prime is 49837744763503. The next prime is 49837744763629. The reversal of 49837744763509 is 90536744773894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32871336622609 + 16966408140900 = 5733353^2 + 4119030^2 .

It is a cyclic number.

It is not a de Polignac number, because 49837744763509 - 2¹³ = 49837744755317 is a prime.

It is a super-2 number, since 2×49837744763509² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49837744763503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24918872381754 + 24918872381755.

It is an arithmetic number, because the mean of its divisors is an integer number (24918872381755).

Almost surely, 2^{49837744763509} is an apocalyptic number.

It is an amenable number.

49837744763509 is a deficient number, since it is larger than the sum of its proper divisors (1).

49837744763509 is an equidigital number, since it uses as much as digits as its factorization.

49837744763509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840721920, while the sum is 76.

The spelling of 49837744763509 in words is "forty-nine trillion, eight hundred thirty-seven billion, seven hundred forty-four million, seven hundred sixty-three thousand, five hundred nine".