49477732831 has 2 divisors, whose sum is σ = 49477732832. Its totient is φ = 49477732830.

The previous prime is 49477732813. The next prime is 49477732847. The reversal of 49477732831 is 13823777494.

Together with previous prime (49477732813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49477732831 is a prime.

It is a super-2 number, since 2×49477732831² (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 (49477730831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24738866415 + 24738866416.

It is an arithmetic number, because the mean of its divisors is an integer number (24738866416).

Almost surely, 2^49477732831 is an apocalyptic number.

49477732831 is a deficient number, since it is larger than the sum of its proper divisors (1).

49477732831 is an equidigital number, since it uses as much as digits as its factorization.

49477732831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 55.

The spelling of 49477732831 in words is "forty-nine billion, four hundred seventy-seven million, seven hundred thirty-two thousand, eight hundred thirty-one".