728033261501 has 64 divisors (see below), whose sum is σ = 950169292800. Its totient is φ = 541686237696.

The previous prime is 728033261491. The next prime is 728033261531. The reversal of 728033261501 is 105162330827.

It is not a de Polignac number, because 728033261501 - 2¹⁴ = 728033245117 is a prime.

It is a super-3 number, since 3×728033261501³ (a number of 37 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728033261531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 439367465 + ... + 439369121.

It is an arithmetic number, because the mean of its divisors is an integer number (14846395200).

Almost surely, 2^728033261501 is an apocalyptic number.

It is an amenable number.

728033261501 is a deficient number, since it is larger than the sum of its proper divisors (222136031299).

728033261501 is a wasteful number, since it uses less digits than its factorization.

728033261501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 728033261501 in words is "seven hundred twenty-eight billion, thirty-three million, two hundred sixty-one thousand, five hundred one".