861196276674 has 24 divisors (see below), whose sum is σ = 1926116404992. Its totient is φ = 277805250360.

The previous prime is 861196276639. The next prime is 861196276679. The reversal of 861196276674 is 476672691168.

It is a happy number.

861196276674 is a `hidden beast` number, since 8 + 611 + 9 + 6 + 2 + 7 + 6 + 6 + 7 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (861196276679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771680694 + ... + 771681809.

It is an arithmetic number, because the mean of its divisors is an integer number (80254850208).

Almost surely, 2^861196276674 is an apocalyptic number.

861196276674 is an abundant number, since it is smaller than the sum of its proper divisors (1064920128318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

861196276674 is a wasteful number, since it uses less digits than its factorization.

861196276674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543362542 (or 1543362539 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 861196276674 in words is "eight hundred sixty-one billion, one hundred ninety-six million, two hundred seventy-six thousand, six hundred seventy-four".