728810908378 has 32 divisors (see below), whose sum is σ = 1315206144000. Its totient is φ = 295894994544.

The previous prime is 728810908369. The next prime is 728810908391. The reversal of 728810908378 is 873809018827.

728810908378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7827051 + ... + 7919617.

It is an arithmetic number, because the mean of its divisors is an integer number (41100192000).

Almost surely, 2^728810908378 is an apocalyptic number.

728810908378 is a deficient number, since it is larger than the sum of its proper divisors (586395235622).

728810908378 is a wasteful number, since it uses less digits than its factorization.

728810908378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122194.

The product of its (nonzero) digits is 10838016, while the sum is 61.

The spelling of 728810908378 in words is "seven hundred twenty-eight billion, eight hundred ten million, nine hundred eight thousand, three hundred seventy-eight".