4781328195501 has 256 divisors, whose sum is σ = 8797307904000. Its totient is φ = 2525269063680.

The previous prime is 4781328195491. The next prime is 4781328195503. The reversal of 4781328195501 is 1055918231874.

4781328195501 is a `hidden beast` number, since 4 + 7 + 8 + 1 + 3 + 2 + 81 + 9 + 550 + 1 = 666.

It is not a de Polignac number, because 4781328195501 - 2⁶ = 4781328195437 is a prime.

It is a super-2 number, since 2×4781328195501² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781328195503) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2971613985 + ... + 2971615593.

It is an arithmetic number, because the mean of its divisors is an integer number (34364484000).

Almost surely, 2^{4781328195501} is an apocalyptic number.

It is an amenable number.

4781328195501 is a deficient number, since it is larger than the sum of its proper divisors (4015979708499).

4781328195501 is a wasteful number, since it uses less digits than its factorization.

4781328195501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 4781328195501 in words is "four trillion, seven hundred eighty-one billion, three hundred twenty-eight million, one hundred ninety-five thousand, five hundred one".