728762157088 has 48 divisors (see below), whose sum is σ = 1666595456064. Its totient is φ = 307206524160.

The previous prime is 728762157061. The next prime is 728762157121. The reversal of 728762157088 is 880751267827.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (61).

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, 26653570 + ... + 26680897.

It is an arithmetic number, because the mean of its divisors is an integer number (34720738668).

Almost surely, 2^728762157088 is an apocalyptic number.

It is an amenable number.

728762157088 is an abundant number, since it is smaller than the sum of its proper divisors (937833298976).

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

728762157088 is a wasteful number, since it uses less digits than its factorization.

728762157088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53334545 (or 53334537 counting only the distinct ones).

The product of its (nonzero) digits is 21073920, while the sum is 61.

The spelling of 728762157088 in words is "seven hundred twenty-eight billion, seven hundred sixty-two million, one hundred fifty-seven thousand, eighty-eight".