77070660755732 has 144 divisors (see below), whose sum is σ = 163887301041408. Its totient is φ = 31589199694080.

The previous prime is 77070660755731. The next prime is 77070660755741. The reversal of 77070660755732 is 23755706607077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77070660755731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 657748583 + ... + 657865745.

It is an arithmetic number, because the mean of its divisors is an integer number (1138106257232).

Almost surely, 2^{77070660755732} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77070660755732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81943650520704).

77070660755732 is an abundant number, since it is smaller than the sum of its proper divisors (86816640285676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77070660755732 is a wasteful number, since it uses less digits than its factorization.

77070660755732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118766 (or 118757 counting only the distinct ones).

The product of its (nonzero) digits is 90757800, while the sum is 62.

The spelling of 77070660755732 in words is "seventy-seven trillion, seventy billion, six hundred sixty million, seven hundred fifty-five thousand, seven hundred thirty-two".