77260257705 has 32 divisors (see below), whose sum is σ = 124377482880. Its totient is φ = 40951961600.

The previous prime is 77260257703. The next prime is 77260257709. The reversal of 77260257705 is 50775206277.

It is not a de Polignac number, because 77260257705 - 2¹ = 77260257703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77260257703) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11547001 + ... + 11553689.

It is an arithmetic number, because the mean of its divisors is an integer number (3886796340).

Almost surely, 2^77260257705 is an apocalyptic number.

It is an amenable number.

77260257705 is a deficient number, since it is larger than the sum of its proper divisors (47117225175).

77260257705 is a wasteful number, since it uses less digits than its factorization.

77260257705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321.

The product of its (nonzero) digits is 1440600, while the sum is 48.

The spelling of 77260257705 in words is "seventy-seven billion, two hundred sixty million, two hundred fifty-seven thousand, seven hundred five".