51432545243 has 16 divisors (see below), whose sum is σ = 53581118976. Its totient is φ = 49329572160.

The previous prime is 51432545201. The next prime is 51432545261. The reversal of 51432545243 is 34254523415.

It is not a de Polignac number, because 51432545243 - 2¹⁸ = 51432283099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51432545197 and 51432545206.

It is not an unprimeable number, because it can be changed into a prime (51432542243) 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, 1363130 + ... + 1400352.

It is an arithmetic number, because the mean of its divisors is an integer number (3348819936).

Almost surely, 2^51432545243 is an apocalyptic number.

51432545243 is a deficient number, since it is larger than the sum of its proper divisors (2148573733).

51432545243 is a wasteful number, since it uses less digits than its factorization.

51432545243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37834.

The product of its digits is 288000, while the sum is 38.

The spelling of 51432545243 in words is "fifty-one billion, four hundred thirty-two million, five hundred forty-five thousand, two hundred forty-three".