77608208542 has 8 divisors (see below), whose sum is σ = 116461294416. Its totient is φ = 38787777072.

The previous prime is 77608208521. The next prime is 77608208581. The reversal of 77608208542 is 24580280677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8157658 + ... + 8167165.

It is an arithmetic number, because the mean of its divisors is an integer number (14557661802).

Almost surely, 2^77608208542 is an apocalyptic number.

77608208542 is a deficient number, since it is larger than the sum of its proper divisors (38853085874).

77608208542 is a wasteful number, since it uses less digits than its factorization.

77608208542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16327202.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 77608208542 in words is "seventy-seven billion, six hundred eight million, two hundred eight thousand, five hundred forty-two".