5061061049981 has 4 divisors (see below), whose sum is σ = 5062940392092. Its totient is φ = 5059181707872.

The previous prime is 5061061049977. The next prime is 5061061049987. The reversal of 5061061049981 is 1899401601605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3344725241881 + 1716335808100 = 1828859^2 + 1310090^2 .

It is a cyclic number.

It is not a de Polignac number, because 5061061049981 - 2² = 5061061049977 is a prime.

It is a super-2 number, since 2×5061061049981² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5061061049987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939667016 + ... + 939672401.

It is an arithmetic number, because the mean of its divisors is an integer number (1265735098023).

Almost surely, 2^{5061061049981} is an apocalyptic number.

It is an amenable number.

5061061049981 is a deficient number, since it is larger than the sum of its proper divisors (1879342111).

5061061049981 is a wasteful number, since it uses less digits than its factorization.

5061061049981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879342110.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 5061061049981 in words is "five trillion, sixty-one billion, sixty-one million, forty-nine thousand, nine hundred eighty-one".