866940702407 has 16 divisors (see below), whose sum is σ = 934395000000. Its totient is φ = 799596244224.

The previous prime is 866940702401. The next prime is 866940702427. The reversal of 866940702407 is 704207049668.

It is a cyclic number.

It is not a de Polignac number, because 866940702407 - 2⁸ = 866940702151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866940702401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107171219 + ... + 107179307.

It is an arithmetic number, because the mean of its divisors is an integer number (58399687500).

Almost surely, 2^866940702407 is an apocalyptic number.

866940702407 is a deficient number, since it is larger than the sum of its proper divisors (67454297593).

866940702407 is a wasteful number, since it uses less digits than its factorization.

866940702407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13850.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 866940702407 in words is "eight hundred sixty-six billion, nine hundred forty million, seven hundred two thousand, four hundred seven".