77325180 has 144 divisors (see below), whose sum is σ = 240426144. Its totient is φ = 18493440.

The previous prime is 77325173. The next prime is 77325181. The reversal of 77325180 is 8152377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77325181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1798239 + ... + 1798281.

It is an arithmetic number, because the mean of its divisors is an integer number (1669626).

Almost surely, 2^77325180 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 77325180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120213072).

77325180 is an abundant number, since it is smaller than the sum of its proper divisors (163100964).

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

77325180 is a wasteful number, since it uses less digits than its factorization.

77325180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 111 counting only the distinct ones).

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

The square root of 77325180 is about 8793.4737163421. The cubic root of 77325180 is about 426.0301285751.

The spelling of 77325180 in words is "seventy-seven million, three hundred twenty-five thousand, one hundred eighty".