77328237839 has 4 divisors (see below), whose sum is σ = 77328807360. Its totient is φ = 77327668320.

The previous prime is 77328237827. The next prime is 77328237887. The reversal of 77328237839 is 93873282377.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77328237839 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 (77328267839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50402 + ... + 396480.

It is an arithmetic number, because the mean of its divisors is an integer number (19332201840).

Almost surely, 2^77328237839 is an apocalyptic number.

77328237839 is a deficient number, since it is larger than the sum of its proper divisors (569521).

77328237839 is a wasteful number, since it uses less digits than its factorization.

77328237839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569520.

The product of its digits is 21337344, while the sum is 59.

The spelling of 77328237839 in words is "seventy-seven billion, three hundred twenty-eight million, two hundred thirty-seven thousand, eight hundred thirty-nine".