7201681862856 has 64 divisors (see below), whose sum is σ = 19402770213120. Its totient is φ = 2214344770560.

The previous prime is 7201681862833. The next prime is 7201681862873. The reversal of 7201681862856 is 6582681861027.

It is a self number, because there is not a number n which added to its sum of digits gives 7201681862856.

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, 7666465 + ... + 8554416.

It is an arithmetic number, because the mean of its divisors is an integer number (303168284580).

Almost surely, 2^{7201681862856} is an apocalyptic number.

It is an amenable number.

7201681862856 is an abundant number, since it is smaller than the sum of its proper divisors (12201088350264).

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

7201681862856 is a wasteful number, since it uses less digits than its factorization.

7201681862856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16222326 (or 16222322 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 60.

The spelling of 7201681862856 in words is "seven trillion, two hundred one billion, six hundred eighty-one million, eight hundred sixty-two thousand, eight hundred fifty-six".