49508644837 has 2 divisors, whose sum is σ = 49508644838. Its totient is φ = 49508644836.

The previous prime is 49508644781. The next prime is 49508644919. The reversal of 49508644837 is 73844680594.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43449734916 + 6058909921 = 208446^2 + 77839^2 .

It is a cyclic number.

It is not a de Polignac number, because 49508644837 - 2³¹ = 47361161189 is a prime.

It is a super-2 number, since 2×49508644837² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49508644637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24754322418 + 24754322419.

It is an arithmetic number, because the mean of its divisors is an integer number (24754322419).

Almost surely, 2^49508644837 is an apocalyptic number.

It is an amenable number.

49508644837 is a deficient number, since it is larger than the sum of its proper divisors (1).

49508644837 is an equidigital number, since it uses as much as digits as its factorization.

49508644837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 49508644837 in words is "forty-nine billion, five hundred eight million, six hundred forty-four thousand, eight hundred thirty-seven".