77606588481 has 16 divisors (see below), whose sum is σ = 104179284480. Its totient is φ = 51386417280.

The previous prime is 77606588473. The next prime is 77606588483. The reversal of 77606588481 is 18488560677.

It is a happy number.

It is not a de Polignac number, because 77606588481 - 2³ = 77606588473 is a prime.

It is a super-2 number, since 2×77606588481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77606588483) 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, 438885 + ... + 589773.

It is an arithmetic number, because the mean of its divisors is an integer number (6511205280).

Almost surely, 2^77606588481 is an apocalyptic number.

It is an amenable number.

77606588481 is a deficient number, since it is larger than the sum of its proper divisors (26572695999).

77606588481 is a wasteful number, since it uses less digits than its factorization.

77606588481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152056.

The product of its (nonzero) digits is 18063360, while the sum is 60.

The spelling of 77606588481 in words is "seventy-seven billion, six hundred six million, five hundred eighty-eight thousand, four hundred eighty-one".