957781522866 has 16 divisors (see below), whose sum is σ = 2189214909504. Its totient is φ = 273651863664.

The previous prime is 957781522853. The next prime is 957781522871. The reversal of 957781522866 is 668225187759.

It is a junction number, because it is equal to n+sod(n) for n = 957781522797 and 957781522806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11402160945 + ... + 11402161028.

It is an arithmetic number, because the mean of its divisors is an integer number (136825931844).

Almost surely, 2^957781522866 is an apocalyptic number.

957781522866 is an abundant number, since it is smaller than the sum of its proper divisors (1231433386638).

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

957781522866 is a wasteful number, since it uses less digits than its factorization.

957781522866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22804321985.

The product of its digits is 101606400, while the sum is 66.

The spelling of 957781522866 in words is "nine hundred fifty-seven billion, seven hundred eighty-one million, five hundred twenty-two thousand, eight hundred sixty-six".