77045716426225 has 6 divisors (see below), whose sum is σ = 95536688368550. Its totient is φ = 61636573140960.

The previous prime is 77045716426223. The next prime is 77045716426271. The reversal of 77045716426225 is 52262461754077.

It can be written as a sum of positive squares in 3 ways, for example, as 8813292500961 + 68232423925264 = 2968719^2 + 8260292^2 .

It is not a de Polignac number, because 77045716426225 - 2¹ = 77045716426223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77045716426225.

It is not an unprimeable number, because it can be changed into a prime (77045716426223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1540914328500 + ... + 1540914328549.

Almost surely, 2^{77045716426225} is an apocalyptic number.

It is an amenable number.

77045716426225 is a deficient number, since it is larger than the sum of its proper divisors (18490971942325).

77045716426225 is a wasteful number, since it uses less digits than its factorization.

77045716426225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081828657059 (or 3081828657054 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 58.

The spelling of 77045716426225 in words is "seventy-seven trillion, forty-five billion, seven hundred sixteen million, four hundred twenty-six thousand, two hundred twenty-five".