728773312811412 has 48 divisors (see below), whose sum is σ = 1855110106612224. Its totient is φ = 220834354380000.

The previous prime is 728773312811381. The next prime is 728773312811461. The reversal of 728773312811412 is 214118213377827.

It is a super-2 number, since 2×728773312811412² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

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, 70700014 + ... + 80349477.

It is an arithmetic number, because the mean of its divisors is an integer number (38648127221088).

Almost surely, 2^{728773312811412} is an apocalyptic number.

It is an amenable number.

728773312811412 is an abundant number, since it is smaller than the sum of its proper divisors (1126336793800812).

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

728773312811412 is a wasteful number, since it uses less digits than its factorization.

728773312811412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151086060 (or 151086058 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 57.

The spelling of 728773312811412 in words is "seven hundred twenty-eight trillion, seven hundred seventy-three billion, three hundred twelve million, eight hundred eleven thousand, four hundred twelve".