51000143340 has 48 divisors (see below), whose sum is σ = 143842763232. Its totient is φ = 13500765696.

The previous prime is 51000143297. The next prime is 51000143347. The reversal of 51000143340 is 4334100015.

It is not an unprimeable number, because it can be changed into a prime (51000143347) 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, 3093979 + ... + 3110418.

It is an arithmetic number, because the mean of its divisors is an integer number (2996724234).

Almost surely, 2^51000143340 is an apocalyptic number.

It is an amenable number.

51000143340 is an abundant number, since it is smaller than the sum of its proper divisors (92842619892).

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

51000143340 is a wasteful number, since it uses less digits than its factorization.

51000143340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204546 (or 6204544 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 51000143340 its reverse (4334100015), we get a palindrome (55334243355).

The spelling of 51000143340 in words is "fifty-one billion, one hundred forty-three thousand, three hundred forty".