52146438640468 has 12 divisors (see below), whose sum is σ = 91256850587700. Its totient is φ = 26073052758272.

The previous prime is 52146438640433. The next prime is 52146438640487. The reversal of 52146438640468 is 86404683464125.

It can be written as a sum of positive squares in 2 ways, for example, as 6080110460944 + 46066328179524 = 2465788^2 + 6787218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40934743 + ... + 42189406.

It is an arithmetic number, because the mean of its divisors is an integer number (7604737548975).

Almost surely, 2^{52146438640468} is an apocalyptic number.

It is an amenable number.

52146438640468 is a deficient number, since it is larger than the sum of its proper divisors (39110411947232).

52146438640468 is a wasteful number, since it uses less digits than its factorization.

52146438640468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83280986 (or 83280984 counting only the distinct ones).

The product of its (nonzero) digits is 106168320, while the sum is 61.

The spelling of 52146438640468 in words is "fifty-two trillion, one hundred forty-six billion, four hundred thirty-eight million, six hundred forty thousand, four hundred sixty-eight".