861332464423095 has 128 divisors (see below), whose sum is σ = 1634488968960000. Its totient is φ = 387054972057600.

The previous prime is 861332464423073. The next prime is 861332464423139. The reversal of 861332464423095 is 590324464233168.

It is a happy number.

861332464423095 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861332464423095 - 2¹⁸ = 861332464160951 is a prime.

It is a super-2 number, since 2×861332464423095² (a number of 31 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 127 ways as a sum of consecutive naturals, for example, 5676706191 + ... + 5676857919.

It is an arithmetic number, because the mean of its divisors is an integer number (12769445070000).

Almost surely, 2^{861332464423095} is an apocalyptic number.

861332464423095 is a deficient number, since it is larger than the sum of its proper divisors (773156504536905).

861332464423095 is a wasteful number, since it uses less digits than its factorization.

861332464423095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170518 (or 170504 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 60.

The spelling of 861332464423095 in words is "eight hundred sixty-one trillion, three hundred thirty-two billion, four hundred sixty-four million, four hundred twenty-three thousand, ninety-five".