61028045481 has 16 divisors (see below), whose sum is σ = 88167630656. Its totient is φ = 37325313216.

The previous prime is 61028045471. The next prime is 61028045489. The reversal of 61028045481 is 18454082016.

It is not a de Polignac number, because 61028045481 - 2¹³ = 61028037289 is a prime.

It is a super-2 number, since 2×61028045481² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61028045489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4793710 + ... + 4806423.

It is an arithmetic number, because the mean of its divisors is an integer number (5510476916).

Almost surely, 2^61028045481 is an apocalyptic number.

It is an amenable number.

61028045481 is a deficient number, since it is larger than the sum of its proper divisors (27139585175).

61028045481 is a wasteful number, since it uses less digits than its factorization.

61028045481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9600312.

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 61028045481 in words is "sixty-one billion, twenty-eight million, forty-five thousand, four hundred eighty-one".