45685355820 has 96 divisors (see below), whose sum is σ = 137973362688. Its totient is φ = 11228120832.

The previous prime is 45685355819. The next prime is 45685355827. The reversal of 45685355820 is 2855358654.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (45685355827) 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 31 ways as a sum of consecutive naturals, for example, 459397 + ... + 549923.

It is an arithmetic number, because the mean of its divisors is an integer number (1437222528).

Almost surely, 2^45685355820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45685355820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68986681344).

45685355820 is an abundant number, since it is smaller than the sum of its proper divisors (92288006868).

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

45685355820 is a wasteful number, since it uses less digits than its factorization.

45685355820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91199 (or 91197 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 51.

The spelling of 45685355820 in words is "forty-five billion, six hundred eighty-five million, three hundred fifty-five thousand, eight hundred twenty".