728617237480 has 32 divisors (see below), whose sum is σ = 1788424129440. Its totient is φ = 264951722560.

The previous prime is 728617237463. The next prime is 728617237501. The reversal of 728617237480 is 84732716827.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827973694 + ... + 827974573.

It is an arithmetic number, because the mean of its divisors is an integer number (55888254045).

Almost surely, 2^728617237480 is an apocalyptic number.

It is an amenable number.

728617237480 is an abundant number, since it is smaller than the sum of its proper divisors (1059806891960).

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

728617237480 is a wasteful number, since it uses less digits than its factorization.

728617237480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655948289 (or 1655948285 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 728617237480 in words is "seven hundred twenty-eight billion, six hundred seventeen million, two hundred thirty-seven thousand, four hundred eighty".