49656431879837 has 2 divisors, whose sum is σ = 49656431879838. Its totient is φ = 49656431879836.

The previous prime is 49656431879773. The next prime is 49656431879843. The reversal of 49656431879837 is 73897813465694.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49568443116196 + 87988763641 = 7040486^2 + 296629^2 .

It is a cyclic number.

It is not a de Polignac number, because 49656431879837 - 2⁶ = 49656431879773 is a prime.

It is a super-2 number, since 2×49656431879837² (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 (49656431879867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24828215939918 + 24828215939919.

It is an arithmetic number, because the mean of its divisors is an integer number (24828215939919).

Almost surely, 2^{49656431879837} is an apocalyptic number.

It is an amenable number.

49656431879837 is a deficient number, since it is larger than the sum of its proper divisors (1).

49656431879837 is an equidigital number, since it uses as much as digits as its factorization.

49656431879837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6584094720, while the sum is 80.

The spelling of 49656431879837 in words is "forty-nine trillion, six hundred fifty-six billion, four hundred thirty-one million, eight hundred seventy-nine thousand, eight hundred thirty-seven".