51441046351061 has 4 divisors (see below), whose sum is σ = 51442785840492. Its totient is φ = 51439306861632.

The previous prime is 51441046351049. The next prime is 51441046351087. The reversal of 51441046351061 is 16015364014415.

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 14566931722225 + 36874114628836 = 3816665^2 + 6072406^2 .

It is a cyclic number.

It is not a de Polignac number, because 51441046351061 - 2²⁶ = 51440979242197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51441046351361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869700356 + ... + 869759501.

It is an arithmetic number, because the mean of its divisors is an integer number (12860696460123).

Almost surely, 2^{51441046351061} is an apocalyptic number.

It is an amenable number.

51441046351061 is a deficient number, since it is larger than the sum of its proper divisors (1739489431).

51441046351061 is a wasteful number, since it uses less digits than its factorization.

51441046351061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739489430.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 51441046351061 in words is "fifty-one trillion, four hundred forty-one billion, forty-six million, three hundred fifty-one thousand, sixty-one".