7766650864349 has 16 divisors (see below), whose sum is σ = 8930712185472. Its totient is φ = 6698034116928.

The previous prime is 7766650864283. The next prime is 7766650864373. The reversal of 7766650864349 is 9434680566677.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7766650864349 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 (7766650864249) 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, 302026922 + ... + 302052635.

It is an arithmetic number, because the mean of its divisors is an integer number (558169511592).

Almost surely, 2^{7766650864349} is an apocalyptic number.

It is an amenable number.

7766650864349 is a deficient number, since it is larger than the sum of its proper divisors (1164061321123).

7766650864349 is a wasteful number, since it uses less digits than its factorization.

7766650864349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604079636.

The product of its (nonzero) digits is 1097349120, while the sum is 71.

The spelling of 7766650864349 in words is "seven trillion, seven hundred sixty-six billion, six hundred fifty million, eight hundred sixty-four thousand, three hundred forty-nine".