77396147140 has 96 divisors (see below), whose sum is σ = 181233077760. Its totient is φ = 27566784000.

The previous prime is 77396147099. The next prime is 77396147201. The reversal of 77396147140 is 4174169377.

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 31 ways as a sum of consecutive naturals, for example, 9730165 + ... + 9738115.

It is an arithmetic number, because the mean of its divisors is an integer number (1887844560).

Almost surely, 2^77396147140 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 77396147140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90616538880).

77396147140 is an abundant number, since it is smaller than the sum of its proper divisors (103836930620).

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

77396147140 is a wasteful number, since it uses less digits than its factorization.

77396147140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9293 (or 9291 counting only the distinct ones).

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 77396147140 in words is "seventy-seven billion, three hundred ninety-six million, one hundred forty-seven thousand, one hundred forty".