40520669019 has 16 divisors (see below), whose sum is σ = 54741918720. Its totient is φ = 26656980480.

The previous prime is 40520669003. The next prime is 40520669047. The reversal of 40520669019 is 91096602504.

It is a happy number.

It is not a de Polignac number, because 40520669019 - 2⁴ = 40520669003 is a prime.

It is a super-2 number, since 2×40520669019² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40520669419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387259 + ... + 480635.

It is an arithmetic number, because the mean of its divisors is an integer number (3421369920).

Almost surely, 2^40520669019 is an apocalyptic number.

40520669019 is a deficient number, since it is larger than the sum of its proper divisors (14221249701).

40520669019 is a wasteful number, since it uses less digits than its factorization.

40520669019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95290.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 40520669019 in words is "forty billion, five hundred twenty million, six hundred sixty-nine thousand, nineteen".