77757550374243 has 16 divisors (see below), whose sum is σ = 103904387888000. Its totient is φ = 51724579660416.

The previous prime is 77757550374211. The next prime is 77757550374289. The reversal of 77757550374243 is 34247305575777.

It is not a de Polignac number, because 77757550374243 - 2⁵ = 77757550374211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77757550374443) 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, 2856171 + ... + 12793467.

It is an arithmetic number, because the mean of its divisors is an integer number (6494024243000).

Almost surely, 2^{77757550374243} is an apocalyptic number.

77757550374243 is a deficient number, since it is larger than the sum of its proper divisors (26146837513757).

77757550374243 is a wasteful number, since it uses less digits than its factorization.

77757550374243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9943026.

The product of its (nonzero) digits is 605052000, while the sum is 66.

The spelling of 77757550374243 in words is "seventy-seven trillion, seven hundred fifty-seven billion, five hundred fifty million, three hundred seventy-four thousand, two hundred forty-three".