51467542604821 has 8 divisors (see below), whose sum is σ = 58820207704640. Its totient is φ = 44114917258368.

The previous prime is 51467542604813. The next prime is 51467542604837. The reversal of 51467542604821 is 12840624576415.

It is a happy number.

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 51467542604821 - 2³ = 51467542604813 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 (51467542604861) 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, 7110396 + ... + 12389221.

It is an arithmetic number, because the mean of its divisors is an integer number (7352525963080).

Almost surely, 2^{51467542604821} is an apocalyptic number.

It is an amenable number.

51467542604821 is a deficient number, since it is larger than the sum of its proper divisors (7352665099819).

51467542604821 is a wasteful number, since it uses less digits than its factorization.

51467542604821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19876683.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 51467542604821 in words is "fifty-one trillion, four hundred sixty-seven billion, five hundred forty-two million, six hundred four thousand, eight hundred twenty-one".