45045379212 has 24 divisors (see below), whose sum is σ = 105266861616. Its totient is φ = 14992129728.

The previous prime is 45045379207. The next prime is 45045379307. The reversal of 45045379212 is 21297354054.

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 7 ways as a sum of consecutive naturals, for example, 2866423 + ... + 2882094.

It is an arithmetic number, because the mean of its divisors is an integer number (4386119234).

Almost surely, 2^45045379212 is an apocalyptic number.

It is an amenable number.

45045379212 is an abundant number, since it is smaller than the sum of its proper divisors (60221482404).

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

45045379212 is a wasteful number, since it uses less digits than its factorization.

45045379212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749177 (or 5749175 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 45045379212 in words is "forty-five billion, forty-five million, three hundred seventy-nine thousand, two hundred twelve".