76688549305 has 16 divisors (see below), whose sum is σ = 94248380160. Its totient is φ = 59871909888.

The previous prime is 76688549293. The next prime is 76688549309. The reversal of 76688549305 is 50394588667.

It is a cyclic number.

It is not a de Polignac number, because 76688549305 - 2¹³ = 76688541113 is a prime.

It is a super-2 number, since 2×76688549305² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76688549309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93216 + ... + 402574.

It is an arithmetic number, because the mean of its divisors is an integer number (5890523760).

Almost surely, 2^76688549305 is an apocalyptic number.

It is an amenable number.

76688549305 is a deficient number, since it is larger than the sum of its proper divisors (17559830855).

76688549305 is a wasteful number, since it uses less digits than its factorization.

76688549305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310560.

The product of its (nonzero) digits is 43545600, while the sum is 61.

The spelling of 76688549305 in words is "seventy-six billion, six hundred eighty-eight million, five hundred forty-nine thousand, three hundred five".