51438230937 has 12 divisors (see below), whose sum is σ = 74309427504. Its totient is φ = 34287649080.

The previous prime is 51438230867. The next prime is 51438230969. The reversal of 51438230937 is 73903283415.

It is not a de Polignac number, because 51438230937 - 2¹¹ = 51438228889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51438230892 and 51438230901.

It is not an unprimeable number, because it can be changed into a prime (51438240937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302343 + ... + 440780.

It is an arithmetic number, because the mean of its divisors is an integer number (6192452292).

Almost surely, 2^51438230937 is an apocalyptic number.

It is an amenable number.

51438230937 is a deficient number, since it is larger than the sum of its proper divisors (22871196567).

51438230937 is a wasteful number, since it uses less digits than its factorization.

51438230937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750820 (or 750817 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 51438230937 in words is "fifty-one billion, four hundred thirty-eight million, two hundred thirty thousand, nine hundred thirty-seven".