77349630180 has 96 divisors (see below), whose sum is σ = 219522078720. Its totient is φ = 20347895680.

The previous prime is 77349630167. The next prime is 77349630209. The reversal of 77349630180 is 8103694377.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1509175 + ... + 1559585.

It is an arithmetic number, because the mean of its divisors is an integer number (2286688320).

Almost surely, 2^77349630180 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 77349630180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109761039360).

77349630180 is an abundant number, since it is smaller than the sum of its proper divisors (142172448540).

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

77349630180 is a wasteful number, since it uses less digits than its factorization.

77349630180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50769 (or 50767 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 48.

The spelling of 77349630180 in words is "seventy-seven billion, three hundred forty-nine million, six hundred thirty thousand, one hundred eighty".