64743143050 has 24 divisors (see below), whose sum is σ = 123359377932. Its totient is φ = 25265616000.

The previous prime is 64743143041. The next prime is 64743143071. The reversal of 64743143050 is 5034134746.

It can be written as a sum of positive squares in 6 ways, for example, as 27429653161 + 37313489889 = 165619^2 + 193167^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15788961 + ... + 15793060.

Almost surely, 2^64743143050 is an apocalyptic number.

64743143050 is a deficient number, since it is larger than the sum of its proper divisors (58616234882).

64743143050 is a wasteful number, since it uses less digits than its factorization.

64743143050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31582074 (or 31582069 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 64743143050 its reverse (5034134746), we get a palindrome (69777277796).

The spelling of 64743143050 in words is "sixty-four billion, seven hundred forty-three million, one hundred forty-three thousand, fifty".