861168415274 has 4 divisors (see below), whose sum is σ = 1291752622914. Its totient is φ = 430584207636.

The previous prime is 861168415259. The next prime is 861168415309. The reversal of 861168415274 is 472514861168.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 827199345025 + 33969070249 = 909505^2 + 184307^2 .

It is a super-2 number, since 2×861168415274² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215292103817 + ... + 215292103820.

Almost surely, 2^861168415274 is an apocalyptic number.

861168415274 is a deficient number, since it is larger than the sum of its proper divisors (430584207640).

861168415274 is a wasteful number, since it uses less digits than its factorization.

861168415274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430584207639.

The product of its digits is 2580480, while the sum is 53.

The spelling of 861168415274 in words is "eight hundred sixty-one billion, one hundred sixty-eight million, four hundred fifteen thousand, two hundred seventy-four".