17975396869 has 16 divisors (see below), whose sum is σ = 18650370816. Its totient is φ = 17311276800.

The previous prime is 17975396863. The next prime is 17975396893. The reversal of 17975396869 is 96869357971.

It is a cyclic number.

It is not a de Polignac number, because 17975396869 - 2⁷ = 17975396741 is a prime.

It is a super-2 number, since 2×17975396869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17975396798 and 17975396807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17975396863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1483104 + ... + 1495174.

It is an arithmetic number, because the mean of its divisors is an integer number (1165648176).

Almost surely, 2^17975396869 is an apocalyptic number.

It is an amenable number.

17975396869 is a deficient number, since it is larger than the sum of its proper divisors (674973947).

17975396869 is a wasteful number, since it uses less digits than its factorization.

17975396869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516.

The product of its digits is 154314720, while the sum is 70.

The spelling of 17975396869 in words is "seventeen billion, nine hundred seventy-five million, three hundred ninety-six thousand, eight hundred sixty-nine".