51543543413 has 8 divisors (see below), whose sum is σ = 52540371360. Its totient is φ = 50556254800.

The previous prime is 51543543407. The next prime is 51543543427. The reversal of 51543543413 is 31434534515.

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 51543543413 - 2¹⁸ = 51543281269 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 (51543543433) 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, 2373923 + ... + 2395536.

It is an arithmetic number, because the mean of its divisors is an integer number (6567546420).

Almost surely, 2^51543543413 is an apocalyptic number.

It is an amenable number.

51543543413 is a deficient number, since it is larger than the sum of its proper divisors (996827947).

51543543413 is a wasteful number, since it uses less digits than its factorization.

51543543413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769667.

The product of its digits is 216000, while the sum is 38.

The spelling of 51543543413 in words is "fifty-one billion, five hundred forty-three million, five hundred forty-three thousand, four hundred thirteen".