212519431697 has 8 divisors (see below), whose sum is σ = 225109526112. Its totient is φ = 199939220800.

The previous prime is 212519431681. The next prime is 212519431699. The reversal of 212519431697 is 796134915212.

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

It is a cyclic number.

It is not a de Polignac number, because 212519431697 - 2⁴ = 212519431681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212519431699) 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, 2426579 + ... + 2512632.

It is an arithmetic number, because the mean of its divisors is an integer number (28138690764).

Almost surely, 2^212519431697 is an apocalyptic number.

It is an amenable number.

212519431697 is a deficient number, since it is larger than the sum of its proper divisors (12590094415).

212519431697 is a wasteful number, since it uses less digits than its factorization.

212519431697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941759.

The product of its digits is 816480, while the sum is 50.

The spelling of 212519431697 in words is "two hundred twelve billion, five hundred nineteen million, four hundred thirty-one thousand, six hundred ninety-seven".