773312545 has 16 divisors (see below), whose sum is σ = 943684560. Its totient is φ = 608256000.

The previous prime is 773312539. The next prime is 773312549. The reversal of 773312545 is 545213377.

It can be written as a sum of positive squares in 8 ways, for example, as 135396496 + 637916049 = 11636^2 + 25257^2 .

It is not a de Polignac number, because 773312545 - 2¹⁵ = 773279777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (773312549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75745 + ... + 85345.

It is an arithmetic number, because the mean of its divisors is an integer number (58980285).

Almost surely, 2^773312545 is an apocalyptic number.

It is an amenable number.

773312545 is a deficient number, since it is larger than the sum of its proper divisors (170372015).

773312545 is a wasteful number, since it uses less digits than its factorization.

773312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876.

The product of its digits is 88200, while the sum is 37.

The square root of 773312545 is about 27808.4977120304. The cubic root of 773312545 is about 917.8781222533.

The spelling of 773312545 in words is "seven hundred seventy-three million, three hundred twelve thousand, five hundred forty-five".