8003145810491 has 4 divisors (see below), whose sum is σ = 8618772411312. Its totient is φ = 7387519209672.

The previous prime is 8003145810449. The next prime is 8003145810503. The reversal of 8003145810491 is 1940185413008.

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

It is a cyclic number.

It is not a de Polignac number, because 8003145810491 - 2¹⁴ = 8003145794107 is a prime.

It is a super-2 number, since 2×8003145810491² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8003145810991) 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, 307813300391 + ... + 307813300416.

It is an arithmetic number, because the mean of its divisors is an integer number (2154693102828).

Almost surely, 2^{8003145810491} is an apocalyptic number.

8003145810491 is a deficient number, since it is larger than the sum of its proper divisors (615626600821).

8003145810491 is a wasteful number, since it uses less digits than its factorization.

8003145810491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615626600820.

The product of its (nonzero) digits is 138240, while the sum is 44.

The spelling of 8003145810491 in words is "eight trillion, three billion, one hundred forty-five million, eight hundred ten thousand, four hundred ninety-one".