51320411461 has 8 divisors (see below), whose sum is σ = 59279192064. Its totient is φ = 43910512320.

The previous prime is 51320411459. The next prime is 51320411533. The reversal of 51320411461 is 16411402315.

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 51320411461 - 2¹ = 51320411459 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 (51320441461) 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, 137220165 + ... + 137220538.

It is an arithmetic number, because the mean of its divisors is an integer number (7409899008).

Almost surely, 2^51320411461 is an apocalyptic number.

It is an amenable number.

51320411461 is a deficient number, since it is larger than the sum of its proper divisors (7958780603).

51320411461 is a wasteful number, since it uses less digits than its factorization.

51320411461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274440731.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 51320411461 its reverse (16411402315), we get a palindrome (67731813776).

The spelling of 51320411461 in words is "fifty-one billion, three hundred twenty million, four hundred eleven thousand, four hundred sixty-one".