861322225048 has 8 divisors (see below), whose sum is σ = 1614979171980. Its totient is φ = 430661112520.

The previous prime is 861322225019. The next prime is 861322225051. The reversal of 861322225048 is 840522223168.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 861322224995 and 861322225013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53832639058 + ... + 53832639073.

Almost surely, 2^861322225048 is an apocalyptic number.

It is an amenable number.

861322225048 is a deficient number, since it is larger than the sum of its proper divisors (753656946932).

861322225048 is a wasteful number, since it uses less digits than its factorization.

861322225048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107665278137 (or 107665278133 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 861322225048 in words is "eight hundred sixty-one billion, three hundred twenty-two million, two hundred twenty-five thousand, forty-eight".