51436128359 has 16 divisors (see below), whose sum is σ = 65179447296. Its totient is φ = 39423045600.

The previous prime is 51436128343. The next prime is 51436128379. The reversal of 51436128359 is 95382163415.

It is a cyclic number.

It is not a de Polignac number, because 51436128359 - 2⁴ = 51436128343 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 (51436128329) 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, 5470727 + ... + 5480120.

It is an arithmetic number, because the mean of its divisors is an integer number (4073715456).

Almost surely, 2^51436128359 is an apocalyptic number.

51436128359 is a deficient number, since it is larger than the sum of its proper divisors (13743318937).

51436128359 is a wasteful number, since it uses less digits than its factorization.

51436128359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10950926.

The product of its digits is 777600, while the sum is 47.

The spelling of 51436128359 in words is "fifty-one billion, four hundred thirty-six million, one hundred twenty-eight thousand, three hundred fifty-nine".