49236621677 has 2 divisors, whose sum is σ = 49236621678. Its totient is φ = 49236621676.

The previous prime is 49236621673. The next prime is 49236621683. The reversal of 49236621677 is 77612663294.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45719420041 + 3517201636 = 213821^2 + 59306^2 .

It is a cyclic number.

It is not a de Polignac number, because 49236621677 - 2² = 49236621673 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49236621673) 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, 24618310838 + 24618310839.

It is an arithmetic number, because the mean of its divisors is an integer number (24618310839).

Almost surely, 2^49236621677 is an apocalyptic number.

It is an amenable number.

49236621677 is a deficient number, since it is larger than the sum of its proper divisors (1).

49236621677 is an equidigital number, since it uses as much as digits as its factorization.

49236621677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 53.

The spelling of 49236621677 in words is "forty-nine billion, two hundred thirty-six million, six hundred twenty-one thousand, six hundred seventy-seven".