77766342858104 has 32 divisors (see below), whose sum is σ = 147848975928720. Its totient is φ = 38343442669056.

The previous prime is 77766342858091. The next prime is 77766342858109. The reversal of 77766342858104 is 40185824366777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77766342858109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218158754 + ... + 218514929.

Almost surely, 2^{77766342858104} is an apocalyptic number.

It is an amenable number.

77766342858104 is a deficient number, since it is larger than the sum of its proper divisors (70082633070616).

77766342858104 is a wasteful number, since it uses less digits than its factorization.

77766342858104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436673999 (or 436673995 counting only the distinct ones).

The product of its (nonzero) digits is 379330560, while the sum is 68.

The spelling of 77766342858104 in words is "seventy-seven trillion, seven hundred sixty-six billion, three hundred forty-two million, eight hundred fifty-eight thousand, one hundred four".