8143890013 has 24 divisors (see below), whose sum is σ = 9794000832. Its totient is φ = 6747681024.

The previous prime is 8143890011. The next prime is 8143890017. The reversal of 8143890013 is 3100983418.

It is not a de Polignac number, because 8143890013 - 2¹ = 8143890011 is a prime.

It is a super-2 number, since 2×8143890013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8143890011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184456 + ... + 224302.

It is an arithmetic number, because the mean of its divisors is an integer number (408083368).

Almost surely, 2^8143890013 is an apocalyptic number.

It is an amenable number.

8143890013 is a deficient number, since it is larger than the sum of its proper divisors (1650110819).

8143890013 is a wasteful number, since it uses less digits than its factorization.

8143890013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40001 (or 39994 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 8143890013 is about 90243.5039933623. The cubic root of 8143890013 is about 2011.9196542115.

The spelling of 8143890013 in words is "eight billion, one hundred forty-three million, eight hundred ninety thousand, thirteen".