49076873981 has 2 divisors, whose sum is σ = 49076873982. Its totient is φ = 49076873980.

The previous prime is 49076873933. The next prime is 49076874001. The reversal of 49076873981 is 18937867094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47108532025 + 1968341956 = 217045^2 + 44366^2 .

It is a cyclic number.

It is not a de Polignac number, because 49076873981 - 2²⁶ = 49009765117 is a prime.

It is a super-2 number, since 2×49076873981² (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 (49076870981) 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, 24538436990 + 24538436991.

It is an arithmetic number, because the mean of its divisors is an integer number (24538436991).

Almost surely, 2^49076873981 is an apocalyptic number.

It is an amenable number.

49076873981 is a deficient number, since it is larger than the sum of its proper divisors (1).

49076873981 is an equidigital number, since it uses as much as digits as its factorization.

49076873981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 62.

The spelling of 49076873981 in words is "forty-nine billion, seventy-six million, eight hundred seventy-three thousand, nine hundred eighty-one".