45445398378 has 64 divisors (see below), whose sum is σ = 96145201152. Its totient is φ = 14292175040.

The previous prime is 45445398377. The next prime is 45445398403. The reversal of 45445398378 is 87389354454.

It is not an unprimeable number, because it can be changed into a prime (45445398377) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3011500 + ... + 3026552.

It is an arithmetic number, because the mean of its divisors is an integer number (1502268768).

Almost surely, 2^45445398378 is an apocalyptic number.

45445398378 is an abundant number, since it is smaller than the sum of its proper divisors (50699802774).

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

45445398378 is a wasteful number, since it uses less digits than its factorization.

45445398378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15379.

The product of its digits is 58060800, while the sum is 60.

The spelling of 45445398378 in words is "forty-five billion, four hundred forty-five million, three hundred ninety-eight thousand, three hundred seventy-eight".