50681457281066 has 4 divisors (see below), whose sum is σ = 76022185921602. Its totient is φ = 25340728640532.

The previous prime is 50681457280939. The next prime is 50681457281113. The reversal of 50681457281066 is 66018275418605.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47341624275625 + 3339833005441 = 6880525^2 + 1827521^2 .

It is a super-2 number, since 2×50681457281066² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50681457280996 and 50681457281014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12670364320265 + ... + 12670364320268.

Almost surely, 2^{50681457281066} is an apocalyptic number.

50681457281066 is a deficient number, since it is larger than the sum of its proper divisors (25340728640536).

50681457281066 is a wasteful number, since it uses less digits than its factorization.

50681457281066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340728640535.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 50681457281066 in words is "fifty trillion, six hundred eighty-one billion, four hundred fifty-seven million, two hundred eighty-one thousand, sixty-six".