866940598877248 has 56 divisors (see below), whose sum is σ = 1966102457732864. Its totient is φ = 371545020748800.

The previous prime is 866940598877233. The next prime is 866940598877251. The reversal of 866940598877248 is 842778895049668.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

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, 189501913 + ... + 194022823.

Almost surely, 2^{866940598877248} is an apocalyptic number.

It is an amenable number.

866940598877248 is an abundant number, since it is smaller than the sum of its proper divisors (1099161858855616).

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

866940598877248 is a wasteful number, since it uses less digits than its factorization.

866940598877248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4948971 (or 4948961 counting only the distinct ones).

The product of its (nonzero) digits is 93640458240, while the sum is 91.

The spelling of 866940598877248 in words is "eight hundred sixty-six trillion, nine hundred forty billion, five hundred ninety-eight million, eight hundred seventy-seven thousand, two hundred forty-eight".