51764379845 has 8 divisors (see below), whose sum is σ = 62125467264. Its totient is φ = 41406029584.

The previous prime is 51764379811. The next prime is 51764379871. The reversal of 51764379845 is 54897346715.

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 51764379845 - 2¹⁰ = 51764378821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642449 + ... + 718518.

It is an arithmetic number, because the mean of its divisors is an integer number (7765683408).

Almost surely, 2^51764379845 is an apocalyptic number.

It is an amenable number.

51764379845 is a deficient number, since it is larger than the sum of its proper divisors (10361087419).

51764379845 is a wasteful number, since it uses less digits than its factorization.

51764379845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368579.

The product of its digits is 25401600, while the sum is 59.

The spelling of 51764379845 in words is "fifty-one billion, seven hundred sixty-four million, three hundred seventy-nine thousand, eight hundred forty-five".