861352574456 has 64 divisors (see below), whose sum is σ = 1873706688000. Its totient is φ = 367093416960.

The previous prime is 861352574441. The next prime is 861352574461. The reversal of 861352574456 is 654475253168.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2493296 + ... + 2817663.

It is an arithmetic number, because the mean of its divisors is an integer number (29276667000).

Almost surely, 2^861352574456 is an apocalyptic number.

It is an amenable number.

861352574456 is an abundant number, since it is smaller than the sum of its proper divisors (1012354113544).

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

861352574456 is a wasteful number, since it uses less digits than its factorization.

861352574456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5311092 (or 5311088 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 56.

The spelling of 861352574456 in words is "eight hundred sixty-one billion, three hundred fifty-two million, five hundred seventy-four thousand, four hundred fifty-six".