77320154112 has 176 divisors, whose sum is σ = 209874816000. Its totient is φ = 25303449600.

The previous prime is 77320154101. The next prime is 77320154129. The reversal of 77320154112 is 21145102377.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48294112 + ... + 48295712.

Almost surely, 2^77320154112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77320154112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104937408000).

77320154112 is an abundant number, since it is smaller than the sum of its proper divisors (132554661888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77320154112 is a wasteful number, since it uses less digits than its factorization.

77320154112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 77320154112 its reverse (21145102377), we get a palindrome (98465256489).

The spelling of 77320154112 in words is "seventy-seven billion, three hundred twenty million, one hundred fifty-four thousand, one hundred twelve".