77398170039 has 12 divisors (see below), whose sum is σ = 111821454472. Its totient is φ = 51587658000.

The previous prime is 77398170029. The next prime is 77398170077. The reversal of 77398170039 is 93007189377.

It is a happy number.

It is not a de Polignac number, because 77398170039 - 2⁴ = 77398170023 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 (77398170029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 882652 + ... + 966369.

Almost surely, 2^77398170039 is an apocalyptic number.

77398170039 is a deficient number, since it is larger than the sum of its proper divisors (34423284433).

77398170039 is a wasteful number, since it uses less digits than its factorization.

77398170039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853678 (or 1853675 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 77398170039 in words is "seventy-seven billion, three hundred ninety-eight million, one hundred seventy thousand, thirty-nine".