858154912913 has 4 divisors (see below), whose sum is σ = 858162290160. Its totient is φ = 858147535668.

The previous prime is 858154912897. The next prime is 858154912963. The reversal of 858154912913 is 319219451858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 858154912913 - 2⁴ = 858154912897 is a prime.

It is a super-2 number, since 2×858154912913² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (858154912963) 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, 3511295 + ... + 3747732.

It is an arithmetic number, because the mean of its divisors is an integer number (214540572540).

Almost surely, 2^858154912913 is an apocalyptic number.

It is an amenable number.

858154912913 is a deficient number, since it is larger than the sum of its proper divisors (7377247).

858154912913 is a wasteful number, since it uses less digits than its factorization.

858154912913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377246.

The product of its digits is 3110400, while the sum is 56.

The spelling of 858154912913 in words is "eight hundred fifty-eight billion, one hundred fifty-four million, nine hundred twelve thousand, nine hundred thirteen".