512821025697 has 8 divisors (see below), whose sum is σ = 684048310144. Its totient is φ = 341737212528.

The previous prime is 512821025687. The next prime is 512821025701. The reversal of 512821025697 is 796520128215.

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

It is not a de Polignac number, because 512821025697 - 2⁷ = 512821025569 is a prime.

It is a super-3 number, since 3×512821025697³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512821025687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35859478 + ... + 35873775.

It is an arithmetic number, because the mean of its divisors is an integer number (85506038768).

Almost surely, 2^512821025697 is an apocalyptic number.

It is an amenable number.

512821025697 is a deficient number, since it is larger than the sum of its proper divisors (171227284447).

512821025697 is a wasteful number, since it uses less digits than its factorization.

512821025697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71735639.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 512821025697 in words is "five hundred twelve billion, eight hundred twenty-one million, twenty-five thousand, six hundred ninety-seven".