77836328711728 has 40 divisors (see below), whose sum is σ = 151158947190336. Its totient is φ = 38827629921600.

The previous prime is 77836328711689. The next prime is 77836328711783. The reversal of 77836328711728 is 82711782363877.

It is a super-2 number, since 2×77836328711728² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18246243 + ... + 22104253.

Almost surely, 2^{77836328711728} is an apocalyptic number.

It is an amenable number.

77836328711728 is a deficient number, since it is larger than the sum of its proper divisors (73322618478608).

77836328711728 is a wasteful number, since it uses less digits than its factorization.

77836328711728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860953 (or 3860947 counting only the distinct ones).

The product of its digits is 265531392, while the sum is 70.

The spelling of 77836328711728 in words is "seventy-seven trillion, eight hundred thirty-six billion, three hundred twenty-eight million, seven hundred eleven thousand, seven hundred twenty-eight".