681060777 has 16 divisors (see below), whose sum is σ = 925126080. Its totient is φ = 445545792.

The previous prime is 681060707. The next prime is 681060803. The reversal of 681060777 is 777060186.

It is not a de Polignac number, because 681060777 - 2¹⁴ = 681044393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (681060707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105363 + ... + 111639.

It is an arithmetic number, because the mean of its divisors is an integer number (57820380).

Almost surely, 2^681060777 is an apocalyptic number.

It is an amenable number.

681060777 is a deficient number, since it is larger than the sum of its proper divisors (244065303).

681060777 is a wasteful number, since it uses less digits than its factorization.

681060777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6952.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 681060777 is about 26097.1411652694. The cubic root of 681060777 is about 879.8229572387.

The spelling of 681060777 in words is "six hundred eighty-one million, sixty thousand, seven hundred seventy-seven".