63078571743668 has 24 divisors (see below), whose sum is σ = 118893279853992. Its totient is φ = 29109652320384.

The previous prime is 63078571743631. The next prime is 63078571743749. The reversal of 63078571743668 is 86634717587036.

It can be written as a sum of positive squares in 4 ways, for example, as 7967962726564 + 55110609017104 = 2822758^2 + 7423652^2 .

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 73205855 + ... + 74062502.

It is an arithmetic number, because the mean of its divisors is an integer number (4953886660583).

Almost surely, 2^{63078571743668} is an apocalyptic number.

It is an amenable number.

63078571743668 is a deficient number, since it is larger than the sum of its proper divisors (55814708110324).

63078571743668 is a wasteful number, since it uses less digits than its factorization.

63078571743668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147276611 (or 147276609 counting only the distinct ones).

The product of its (nonzero) digits is 853493760, while the sum is 71.

The spelling of 63078571743668 in words is "sixty-three trillion, seventy-eight billion, five hundred seventy-one million, seven hundred forty-three thousand, six hundred sixty-eight".