10219831697 has 4 divisors (see below), whose sum is σ = 10220036916. Its totient is φ = 10219626480.

The previous prime is 10219831693. The next prime is 10219831709. The reversal of 10219831697 is 79613891201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7190870401 + 3028961296 = 84799^2 + 55036^2 .

It is a cyclic number.

It is not a de Polignac number, because 10219831697 - 2² = 10219831693 is a prime.

It is a super-3 number, since 3×10219831697³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10219831693) 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, 24947 + ... + 145127.

It is an arithmetic number, because the mean of its divisors is an integer number (2555009229).

Almost surely, 2^10219831697 is an apocalyptic number.

It is an amenable number.

10219831697 is a deficient number, since it is larger than the sum of its proper divisors (205219).

10219831697 is an equidigital number, since it uses as much as digits as its factorization.

10219831697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205218.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 10219831697 in words is "ten billion, two hundred nineteen million, eight hundred thirty-one thousand, six hundred ninety-seven".