77450325480 has 768 divisors, whose sum is σ = 304234444800. Its totient is φ = 16878274560.

The previous prime is 77450325467. The next prime is 77450325481. The reversal of 77450325480 is 8452305477.

77450325480 is a `hidden beast` number, since 7 + 74 + 5 + 0 + 32 + 548 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (77450325481) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 119706517 + ... + 119707163.

It is an arithmetic number, because the mean of its divisors is an integer number (396138600).

Almost surely, 2^77450325480 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 77450325480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152117222400).

77450325480 is an abundant number, since it is smaller than the sum of its proper divisors (226784119320).

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

77450325480 is a wasteful number, since it uses less digits than its factorization.

77450325480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 77450325480 in words is "seventy-seven billion, four hundred fifty million, three hundred twenty-five thousand, four hundred eighty".