85780811808758 has 48 divisors (see below), whose sum is σ = 148948819488000. Its totient is φ = 36920985243120.

The previous prime is 85780811808719. The next prime is 85780811808779.

85780811808758 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4800503 + ... + 13950141.

It is an arithmetic number, because the mean of its divisors is an integer number (3103100406000).

Almost surely, 2^{85780811808758} is an apocalyptic number.

85780811808758 is a deficient number, since it is larger than the sum of its proper divisors (63168007679242).

85780811808758 is a wasteful number, since it uses less digits than its factorization.

85780811808758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151721 (or 9151710 counting only the distinct ones).

The product of its (nonzero) digits is 321126400, while the sum is 74.

The spelling of 85780811808758 in words is "eighty-five trillion, seven hundred eighty billion, eight hundred eleven million, eight hundred eight thousand, seven hundred fifty-eight".