51323889734 has 16 divisors (see below), whose sum is σ = 84472122672. Its totient is φ = 23241006048.

The previous prime is 51323889731. The next prime is 51323889767. The reversal of 51323889734 is 43798832315.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51323889731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18621224 + ... + 18623979.

It is an arithmetic number, because the mean of its divisors is an integer number (5279507667).

Almost surely, 2^51323889734 is an apocalyptic number.

51323889734 is a deficient number, since it is larger than the sum of its proper divisors (33148232938).

51323889734 is a wasteful number, since it uses less digits than its factorization.

51323889734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37245271.

The product of its digits is 4354560, while the sum is 53.

The spelling of 51323889734 in words is "fifty-one billion, three hundred twenty-three million, eight hundred eighty-nine thousand, seven hundred thirty-four".