512797462690 has 8 divisors (see below), whose sum is σ = 923035432860. Its totient is φ = 205118985072.

The previous prime is 512797462673. The next prime is 512797462699. The reversal of 512797462690 is 96264797215.

It can be written as a sum of positive squares in 2 ways, for example, as 417536961241 + 95260501449 = 646171^2 + 308643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×512797462690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (512797462699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25639873125 + ... + 25639873144.

Almost surely, 2^512797462690 is an apocalyptic number.

512797462690 is a deficient number, since it is larger than the sum of its proper divisors (410237970170).

512797462690 is a wasteful number, since it uses less digits than its factorization.

512797462690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51279746276.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 512797462690 in words is "five hundred twelve billion, seven hundred ninety-seven million, four hundred sixty-two thousand, six hundred ninety".