40045482819 has 24 divisors (see below), whose sum is σ = 58100474432. Its totient is φ = 26578627200.

The previous prime is 40045482809. The next prime is 40045482821. The reversal of 40045482819 is 91828454004.

40045482819 is a `hidden beast` number, since 40 + 0 + 454 + 82 + 81 + 9 = 666.

It is not a de Polignac number, because 40045482819 - 2¹¹ = 40045480771 is a prime.

It is a super-2 number, since 2×40045482819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40045482809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1975017 + ... + 1995189.

Almost surely, 2^40045482819 is an apocalyptic number.

40045482819 is a deficient number, since it is larger than the sum of its proper divisors (18054991613).

40045482819 is a wasteful number, since it uses less digits than its factorization.

40045482819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21147 (or 21144 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 40045482819 in words is "forty billion, forty-five million, four hundred eighty-two thousand, eight hundred nineteen".