77732555062645 has 16 divisors (see below), whose sum is σ = 106821764373888. Its totient is φ = 53193764756160.

The previous prime is 77732555062637. The next prime is 77732555062649. The reversal of 77732555062645 is 54626055523777.

77732555062645 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 77732555062645 - 2³ = 77732555062637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77732555062649) 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, 2261622474 + ... + 2261656843.

It is an arithmetic number, because the mean of its divisors is an integer number (6676360273368).

Almost surely, 2^{77732555062645} is an apocalyptic number.

It is an amenable number.

77732555062645 is a deficient number, since it is larger than the sum of its proper divisors (29089209311243).

77732555062645 is a wasteful number, since it uses less digits than its factorization.

77732555062645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523279820.

The product of its (nonzero) digits is 370440000, while the sum is 64.

The spelling of 77732555062645 in words is "seventy-seven trillion, seven hundred thirty-two billion, five hundred fifty-five million, sixty-two thousand, six hundred forty-five".