10386396997 has 4 divisors (see below), whose sum is σ = 10388396140. Its totient is φ = 10384397856.

The previous prime is 10386396991. The next prime is 10386397051. The reversal of 10386396997 is 79969368301.

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 9185497281 + 1200899716 = 95841^2 + 34654^2 .

It is a cyclic number.

It is not a de Polignac number, because 10386396997 - 2³ = 10386396989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10386396991) 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, 991758 + ... + 1002175.

It is an arithmetic number, because the mean of its divisors is an integer number (2597099035).

Almost surely, 2^10386396997 is an apocalyptic number.

It is an amenable number.

10386396997 is a deficient number, since it is larger than the sum of its proper divisors (1999143).

10386396997 is an equidigital number, since it uses as much as digits as its factorization.

10386396997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999142.

The product of its (nonzero) digits is 13226976, while the sum is 61.

The spelling of 10386396997 in words is "ten billion, three hundred eighty-six million, three hundred ninety-six thousand, nine hundred ninety-seven".