51441333013 has 4 divisors (see below), whose sum is σ = 58790094880. Its totient is φ = 44092571148.

The previous prime is 51441333011. The next prime is 51441333043. The reversal of 51441333013 is 31033314415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31033314415 = 5 ⋅6206662883.

It is a cyclic number.

It is not a de Polignac number, because 51441333013 - 2¹ = 51441333011 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 (51441333011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3674380923 + ... + 3674380936.

It is an arithmetic number, because the mean of its divisors is an integer number (14697523720).

Almost surely, 2^51441333013 is an apocalyptic number.

It is an amenable number.

51441333013 is a deficient number, since it is larger than the sum of its proper divisors (7348761867).

51441333013 is an equidigital number, since it uses as much as digits as its factorization.

51441333013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7348761866.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 51441333013 its reverse (31033314415), we get a palindrome (82474647428).

The spelling of 51441333013 in words is "fifty-one billion, four hundred forty-one million, three hundred thirty-three thousand, thirteen".