861375273158 has 8 divisors (see below), whose sum is σ = 1292785141440. Its totient is φ = 430446892680.

The previous prime is 861375273149. The next prime is 861375273169. The reversal of 861375273158 is 851372573168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×861375273158² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120367478 + ... + 120374633.

It is an arithmetic number, because the mean of its divisors is an integer number (161598142680).

Almost surely, 2^861375273158 is an apocalyptic number.

861375273158 is a deficient number, since it is larger than the sum of its proper divisors (431409868282).

861375273158 is a wasteful number, since it uses less digits than its factorization.

861375273158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240743902.

The product of its digits is 8467200, while the sum is 56.

The spelling of 861375273158 in words is "eight hundred sixty-one billion, three hundred seventy-five million, two hundred seventy-three thousand, one hundred fifty-eight".