45121220654730 has 128 divisors (see below), whose sum is σ = 118211101608960. Its totient is φ = 10931485770240.

The previous prime is 45121220654711. The next prime is 45121220654803. The reversal of 45121220654730 is 3745602212154.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6278168197 + ... + 6278175383.

It is an arithmetic number, because the mean of its divisors is an integer number (923524231320).

Almost surely, 2^{45121220654730} is an apocalyptic number.

45121220654730 is an abundant number, since it is smaller than the sum of its proper divisors (73089880954230).

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

45121220654730 is a wasteful number, since it uses less digits than its factorization.

45121220654730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16724.

The product of its (nonzero) digits is 403200, while the sum is 42.

Adding to 45121220654730 its reverse (3745602212154), we get a palindrome (48866822866884).

The spelling of 45121220654730 in words is "forty-five trillion, one hundred twenty-one billion, two hundred twenty million, six hundred fifty-four thousand, seven hundred thirty".