45391934442 has 16 divisors (see below), whose sum is σ = 90786101472. Its totient is φ = 15130272720.

The previous prime is 45391934431. The next prime is 45391934449. The reversal of 45391934442 is 24443919354.

It is a junction number, because it is equal to n+sod(n) for n = 45391934391 and 45391934400.

It is not an unprimeable number, because it can be changed into a prime (45391934449) 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 7 ways as a sum of consecutive naturals, for example, 297217 + ... + 423227.

It is an arithmetic number, because the mean of its divisors is an integer number (5674131342).

Almost surely, 2^45391934442 is an apocalyptic number.

45391934442 is an abundant number, since it is smaller than the sum of its proper divisors (45394167030).

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

45391934442 is a wasteful number, since it uses less digits than its factorization.

45391934442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186053.

The product of its digits is 1866240, while the sum is 48.

The spelling of 45391934442 in words is "forty-five billion, three hundred ninety-one million, nine hundred thirty-four thousand, four hundred forty-two".