770915323873 has 4 divisors (see below), whose sum is σ = 770928993940. Its totient is φ = 770901653808.

The previous prime is 770915323847. The next prime is 770915323909. The reversal of 770915323873 is 378323519077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218698393104 + 552216930769 = 467652^2 + 743113^2 .

It is a cyclic number.

It is not a de Polignac number, because 770915323873 - 2⁹ = 770915323361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770915323273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6750090 + ... + 6863347.

It is an arithmetic number, because the mean of its divisors is an integer number (192732248485).

Almost surely, 2^770915323873 is an apocalyptic number.

It is an amenable number.

770915323873 is a deficient number, since it is larger than the sum of its proper divisors (13670067).

770915323873 is a wasteful number, since it uses less digits than its factorization.

770915323873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13670066.

The product of its (nonzero) digits is 6667920, while the sum is 55.

The spelling of 770915323873 in words is "seven hundred seventy billion, nine hundred fifteen million, three hundred twenty-three thousand, eight hundred seventy-three".