7766208477213 has 16 divisors (see below), whose sum is σ = 10510348506240. Its totient is φ = 5100319514304.

The previous prime is 7766208477199. The next prime is 7766208477217. The reversal of 7766208477213 is 3127748026677.

It is not a de Polignac number, because 7766208477213 - 2⁶ = 7766208477149 is a prime.

It is a super-2 number, since 2×7766208477213² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7766208477217) by changing a digit.

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, 68584681 + ... + 68697822.

It is an arithmetic number, because the mean of its divisors is an integer number (656896781640).

Almost surely, 2^{7766208477213} is an apocalyptic number.

It is an amenable number.

7766208477213 is a deficient number, since it is larger than the sum of its proper divisors (2744140029027).

7766208477213 is a wasteful number, since it uses less digits than its factorization.

7766208477213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137282788.

The product of its (nonzero) digits is 33191424, while the sum is 60.

The spelling of 7766208477213 in words is "seven trillion, seven hundred sixty-six billion, two hundred eight million, four hundred seventy-seven thousand, two hundred thirteen".