10191418697 has 4 divisors (see below), whose sum is σ = 10205323140. Its totient is φ = 10177514256.

The previous prime is 10191418693. The next prime is 10191418711. The reversal of 10191418697 is 79681419101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79681419101 = 239 ⋅333395059.

It can be written as a sum of positive squares in 2 ways, for example, as 8736453961 + 1454964736 = 93469^2 + 38144^2 .

It is a cyclic number.

It is not a de Polignac number, because 10191418697 - 2² = 10191418693 is a prime.

It is a super-2 number, since 2×10191418697² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10191418693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6951122 + ... + 6952587.

It is an arithmetic number, because the mean of its divisors is an integer number (2551330785).

Almost surely, 2^10191418697 is an apocalyptic number.

It is an amenable number.

10191418697 is a deficient number, since it is larger than the sum of its proper divisors (13904443).

10191418697 is an equidigital number, since it uses as much as digits as its factorization.

10191418697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13904442.

The product of its (nonzero) digits is 108864, while the sum is 47.

The spelling of 10191418697 in words is "ten billion, one hundred ninety-one million, four hundred eighteen thousand, six hundred ninety-seven".