51343723618507 has 8 divisors (see below), whose sum is σ = 52171096904640. Its totient is φ = 50520786650880.

The previous prime is 51343723618489. The next prime is 51343723618543. The reversal of 51343723618507 is 70581632734315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51343723618507 - 2¹⁹ = 51343723094219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51343723618547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109056294 + ... + 1109102587.

It is an arithmetic number, because the mean of its divisors is an integer number (6521387113080).

Almost surely, 2^{51343723618507} is an apocalyptic number.

51343723618507 is a deficient number, since it is larger than the sum of its proper divisors (827373286133).

51343723618507 is a wasteful number, since it uses less digits than its factorization.

51343723618507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218159253.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 51343723618507 in words is "fifty-one trillion, three hundred forty-three billion, seven hundred twenty-three million, six hundred eighteen thousand, five hundred seven".