77760803617873 has 24 divisors (see below), whose sum is σ = 81822987658368. Its totient is φ = 73862910811872.

The previous prime is 77760803617859. The next prime is 77760803617927. The reversal of 77760803617873 is 37871630806777.

It is a happy number.

It is not a de Polignac number, because 77760803617873 - 2⁹ = 77760803617361 is a prime.

It is a super-3 number, since 3×77760803617873³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77760803617073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10794090 + ... + 16493452.

It is an arithmetic number, because the mean of its divisors is an integer number (3409291152432).

Almost surely, 2^{77760803617873} is an apocalyptic number.

It is an amenable number.

77760803617873 is a deficient number, since it is larger than the sum of its proper divisors (4062184040495).

77760803617873 is a wasteful number, since it uses less digits than its factorization.

77760803617873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699653 (or 5699610 counting only the distinct ones).

The product of its (nonzero) digits is 348509952, while the sum is 70.

The spelling of 77760803617873 in words is "seventy-seven trillion, seven hundred sixty billion, eight hundred three million, six hundred seventeen thousand, eight hundred seventy-three".