512116443707442 has 32 divisors (see below), whose sum is σ = 1202188408397952. Its totient is φ = 142364416783104.

The previous prime is 512116443707437. The next prime is 512116443707443. The reversal of 512116443707442 is 244707344611215.

It is a super-2 number, since 2×512116443707442² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512116443707443) 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, 164773628983 + ... + 164773632090.

It is an arithmetic number, because the mean of its divisors is an integer number (37568387762436).

Almost surely, 2^{512116443707442} is an apocalyptic number.

512116443707442 is an abundant number, since it is smaller than the sum of its proper divisors (690071964690510).

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

512116443707442 is a wasteful number, since it uses less digits than its factorization.

512116443707442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329547261122.

The product of its (nonzero) digits is 4515840, while the sum is 51.

The spelling of 512116443707442 in words is "five hundred twelve trillion, one hundred sixteen billion, four hundred forty-three million, seven hundred seven thousand, four hundred forty-two".