51528663461 has 8 divisors (see below), whose sum is σ = 59171671200. Its totient is φ = 44378753040.

The previous prime is 51528663409. The next prime is 51528663463. The reversal of 51528663461 is 16436682515.

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 51528663461 - 2¹⁸ = 51528401317 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 (51528663463) 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, 123274106 + ... + 123274523.

It is an arithmetic number, because the mean of its divisors is an integer number (7396458900).

Almost surely, 2^51528663461 is an apocalyptic number.

It is an amenable number.

51528663461 is a deficient number, since it is larger than the sum of its proper divisors (7643007739).

51528663461 is a wasteful number, since it uses less digits than its factorization.

51528663461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246548659.

The product of its digits is 1036800, while the sum is 47.

The spelling of 51528663461 in words is "fifty-one billion, five hundred twenty-eight million, six hundred sixty-three thousand, four hundred sixty-one".