77069744700389 has 6 divisors (see below), whose sum is σ = 89652560161734. Its totient is φ = 66059781171720.

The previous prime is 77069744700373. The next prime is 77069744700433. The reversal of 77069744700389 is 98300744796077.

It can be written as a sum of positive squares in only one way, i.e., 45374477379364 + 31695267321025 = 6736058^2 + 5629855^2 .

It is not a de Polignac number, because 77069744700389 - 2⁴ = 77069744700373 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 (77069744100389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 786425966282 + ... + 786425966379.

It is an arithmetic number, because the mean of its divisors is an integer number (14942093360289).

Almost surely, 2^{77069744700389} is an apocalyptic number.

It is an amenable number.

77069744700389 is a deficient number, since it is larger than the sum of its proper divisors (12582815461345).

77069744700389 is a wasteful number, since it uses less digits than its factorization.

77069744700389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572851932675 (or 1572851932668 counting only the distinct ones).

The product of its (nonzero) digits is 448084224, while the sum is 71.

The spelling of 77069744700389 in words is "seventy-seven trillion, sixty-nine billion, seven hundred forty-four million, seven hundred thousand, three hundred eighty-nine".