49865959976281 has 2 divisors, whose sum is σ = 49865959976282. Its totient is φ = 49865959976280.

The previous prime is 49865959976251. The next prime is 49865959976297. The reversal of 49865959976281 is 18267995956894.

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., 48032939136400 + 1833020839881 = 6930580^2 + 1353891^2 .

It is a cyclic number.

It is not a de Polignac number, because 49865959976281 - 2⁴³ = 41069866954073 is a prime.

It is a super-2 number, since 2×49865959976281² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49865959976192 and 49865959976201.

It is not a weakly prime, because it can be changed into another prime (49865959976251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24932979988140 + 24932979988141.

It is an arithmetic number, because the mean of its divisors is an integer number (24932979988141).

Almost surely, 2^{49865959976281} is an apocalyptic number.

It is an amenable number.

49865959976281 is a deficient number, since it is larger than the sum of its proper divisors (1).

49865959976281 is an equidigital number, since it uses as much as digits as its factorization.

49865959976281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21163161600, while the sum is 88.

The spelling of 49865959976281 in words is "forty-nine trillion, eight hundred sixty-five billion, nine hundred fifty-nine million, nine hundred seventy-six thousand, two hundred eighty-one".