10398493187 has 4 divisors (see below), whose sum is σ = 10398727296. Its totient is φ = 10398259080.

The previous prime is 10398493169. The next prime is 10398493201. The reversal of 10398493187 is 78139489301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78139489301 = 701 ⋅111468601.

It is a cyclic number.

It is not a de Polignac number, because 10398493187 - 2⁶ = 10398493123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10398433187) 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, 27683 + ... + 146844.

It is an arithmetic number, because the mean of its divisors is an integer number (2599681824).

Almost surely, 2^10398493187 is an apocalyptic number.

10398493187 is a deficient number, since it is larger than the sum of its proper divisors (234109).

10398493187 is an equidigital number, since it uses as much as digits as its factorization.

10398493187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234108.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 10398493187 in words is "ten billion, three hundred ninety-eight million, four hundred ninety-three thousand, one hundred eighty-seven".