51340647541 has 16 divisors (see below), whose sum is σ = 54744067584. Its totient is φ = 48036029184.

The previous prime is 51340647497. The next prime is 51340647559. The reversal of 51340647541 is 14574604315.

51340647541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51340647541 - 2¹³ = 51340639349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51340647494 and 51340647503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51340657541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2012035 + ... + 2037391.

It is an arithmetic number, because the mean of its divisors is an integer number (3421504224).

Almost surely, 2^51340647541 is an apocalyptic number.

It is an amenable number.

51340647541 is a deficient number, since it is larger than the sum of its proper divisors (3403420043).

51340647541 is a wasteful number, since it uses less digits than its factorization.

51340647541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27300.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 51340647541 in words is "fifty-one billion, three hundred forty million, six hundred forty-seven thousand, five hundred forty-one".