861362631101 has 16 divisors (see below), whose sum is σ = 1010478526848. Its totient is φ = 718836115200.

The previous prime is 861362631067. The next prime is 861362631149. The reversal of 861362631101 is 101136263168.

It is a de Polignac number, because none of the positive numbers 2^k-861362631101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861362631401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2915360 + ... + 3197193.

It is an arithmetic number, because the mean of its divisors is an integer number (63154907928).

Almost surely, 2^861362631101 is an apocalyptic number.

It is an amenable number.

861362631101 is a deficient number, since it is larger than the sum of its proper divisors (149115895747).

861362631101 is a wasteful number, since it uses less digits than its factorization.

861362631101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113092.

The product of its (nonzero) digits is 31104, while the sum is 38.

Adding to 861362631101 its reverse (101136263168), we get a palindrome (962498894269).

The spelling of 861362631101 in words is "eight hundred sixty-one billion, three hundred sixty-two million, six hundred thirty-one thousand, one hundred one".