861058414047742 has 8 divisors (see below), whose sum is σ = 1291587864356232. Its totient is φ = 430529125929000.

The previous prime is 861058414047721. The next prime is 861058414047743. The reversal of 861058414047742 is 247740414850168.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861058414047743) 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, 26269509 + ... + 49114192.

It is an arithmetic number, because the mean of its divisors is an integer number (161448483044529).

Almost surely, 2^{861058414047742} is an apocalyptic number.

861058414047742 is a deficient number, since it is larger than the sum of its proper divisors (430529450308490).

861058414047742 is a wasteful number, since it uses less digits than its factorization.

861058414047742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81094874.

The product of its (nonzero) digits is 48168960, while the sum is 61.

The spelling of 861058414047742 in words is "eight hundred sixty-one trillion, fifty-eight billion, four hundred fourteen million, forty-seven thousand, seven hundred forty-two".