866786514051340 has 48 divisors (see below), whose sum is σ = 1956091357134432. Its totient is φ = 321449186589696.

The previous prime is 866786514051319. The next prime is 866786514051421. The reversal of 866786514051340 is 43150415687668.

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 15 ways as a sum of consecutive naturals, for example, 19025142147 + ... + 19025187706.

It is an arithmetic number, because the mean of its divisors is an integer number (40751903273634).

Almost surely, 2^{866786514051340} is an apocalyptic number.

It is an amenable number.

866786514051340 is an abundant number, since it is smaller than the sum of its proper divisors (1089304843083092).

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

866786514051340 is a wasteful number, since it uses less digits than its factorization.

866786514051340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38050329946 (or 38050329944 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 866786514051340 in words is "eight hundred sixty-six trillion, seven hundred eighty-six billion, five hundred fourteen million, fifty-one thousand, three hundred forty".