77260257706 has 8 divisors (see below), whose sum is σ = 115892092260. Its totient is φ = 38629560288.

The previous prime is 77260257703. The next prime is 77260257709. The reversal of 77260257706 is 60775206277.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77260257703) and next prime (77260257709).

It can be written as a sum of positive squares in 2 ways, for example, as 67578681681 + 9681576025 = 259959^2 + 98395^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 77260257706.

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 3 ways as a sum of consecutive naturals, for example, 87061 + ... + 402616.

Almost surely, 2^77260257706 is an apocalyptic number.

77260257706 is a deficient number, since it is larger than the sum of its proper divisors (38631834554).

77260257706 is a wasteful number, since it uses less digits than its factorization.

77260257706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568568.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 77260257706 in words is "seventy-seven billion, two hundred sixty million, two hundred fifty-seven thousand, seven hundred six".