7081736856 has 32 divisors (see below), whose sum is σ = 17733836400. Its totient is φ = 2356646400.

The previous prime is 7081736843. The next prime is 7081736861. The reversal of 7081736856 is 6586371807.

It is a junction number, because it is equal to n+sod(n) for n = 7081736799 and 7081736808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231061 + ... + 259908.

Almost surely, 2^7081736856 is an apocalyptic number.

It is an amenable number.

7081736856 is an abundant number, since it is smaller than the sum of its proper divisors (10652099544).

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

7081736856 is a wasteful number, since it uses less digits than its factorization.

7081736856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491579 (or 491575 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 7081736856 is about 84153.0561298875. The cubic root of 7081736856 is about 1920.3479599392.

The spelling of 7081736856 in words is "seven billion, eighty-one million, seven hundred thirty-six thousand, eight hundred fifty-six".