50431146664 has 8 divisors (see below), whose sum is σ = 94558400010. Its totient is φ = 25215573328.

The previous prime is 50431146643. The next prime is 50431146679. The reversal of 50431146664 is 46664113405.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 44623182564 + 5807964100 = 211242^2 + 76210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3151946659 + ... + 3151946674.

Almost surely, 2^50431146664 is an apocalyptic number.

It is an amenable number.

50431146664 is a deficient number, since it is larger than the sum of its proper divisors (44127253346).

50431146664 is a wasteful number, since it uses less digits than its factorization.

50431146664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303893339 (or 6303893335 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 50431146664 in words is "fifty billion, four hundred thirty-one million, one hundred forty-six thousand, six hundred sixty-four".