45242121782 has 16 divisors (see below), whose sum is σ = 79727375952. Its totient is φ = 18982708320.

The previous prime is 45242121761. The next prime is 45242121809. The reversal of 45242121782 is 28712124254.

It is a happy number.

It is a congruent 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, 79094333 + ... + 79094904.

It is an arithmetic number, because the mean of its divisors is an integer number (4982960997).

Almost surely, 2^45242121782 is an apocalyptic number.

45242121782 is a deficient number, since it is larger than the sum of its proper divisors (34485254170).

45242121782 is a wasteful number, since it uses less digits than its factorization.

45242121782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158189263.

The product of its digits is 71680, while the sum is 38.

The spelling of 45242121782 in words is "forty-five billion, two hundred forty-two million, one hundred twenty-one thousand, seven hundred eighty-two".