51231122754 has 16 divisors (see below), whose sum is σ = 117099709248. Its totient is φ = 14637463632.

The previous prime is 51231122749. The next prime is 51231122771. The reversal of 51231122754 is 45722113215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609894277 + ... + 609894360.

It is an arithmetic number, because the mean of its divisors is an integer number (7318731828).

Almost surely, 2^51231122754 is an apocalyptic number.

51231122754 is an abundant number, since it is smaller than the sum of its proper divisors (65868586494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51231122754 is a wasteful number, since it uses less digits than its factorization.

51231122754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219788649.

The product of its digits is 16800, while the sum is 33.

Adding to 51231122754 its reverse (45722113215), we get a palindrome (96953235969).

The spelling of 51231122754 in words is "fifty-one billion, two hundred thirty-one million, one hundred twenty-two thousand, seven hundred fifty-four".