77800470728852 has 288 divisors, whose sum is σ = 156928935905280. Its totient is φ = 33652425058560.

The previous prime is 77800470728807. The next prime is 77800470728857. The reversal of 77800470728852 is 25882707400877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77800470728857) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14199754649 + ... + 14199760127.

It is an arithmetic number, because the mean of its divisors is an integer number (544892138560).

Almost surely, 2^{77800470728852} is an apocalyptic number.

It is an amenable number.

77800470728852 is an abundant number, since it is smaller than the sum of its proper divisors (79128465176428).

77800470728852 is a wasteful number, since it uses less digits than its factorization.

77800470728852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811 (or 5790 counting only the distinct ones).

The product of its (nonzero) digits is 98344960, while the sum is 65.

The spelling of 77800470728852 in words is "seventy-seven trillion, eight hundred billion, four hundred seventy million, seven hundred twenty-eight thousand, eight hundred fifty-two".