51306577449 has 8 divisors (see below), whose sum is σ = 68415470112. Its totient is φ = 34201034880.

The previous prime is 51306577447. The next prime is 51306577451. The reversal of 51306577449 is 94477560315.

It is an interprime number because it is at equal distance from previous prime (51306577447) and next prime (51306577451).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51306577449 - 2¹ = 51306577447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51306577447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801567 + ... + 863204.

It is an arithmetic number, because the mean of its divisors is an integer number (8551933764).

Almost surely, 2^51306577449 is an apocalyptic number.

It is an amenable number.

51306577449 is a deficient number, since it is larger than the sum of its proper divisors (17108892663).

51306577449 is a wasteful number, since it uses less digits than its factorization.

51306577449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675047.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 51306577449 in words is "fifty-one billion, three hundred six million, five hundred seventy-seven thousand, four hundred forty-nine".