40130378523 has 12 divisors (see below), whose sum is σ = 58027978008. Its totient is φ = 26725027680.

The previous prime is 40130378489. The next prime is 40130378539. The reversal of 40130378523 is 32587303104.

It is not a de Polignac number, because 40130378523 - 2⁹ = 40130378011 is a prime.

It is a super-2 number, since 2×40130378523² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40130378543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2370933 + ... + 2387798.

It is an arithmetic number, because the mean of its divisors is an integer number (4835664834).

Almost surely, 2^40130378523 is an apocalyptic number.

40130378523 is a deficient number, since it is larger than the sum of its proper divisors (17897599485).

40130378523 is a wasteful number, since it uses less digits than its factorization.

40130378523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759674 (or 4759671 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 40130378523 in words is "forty billion, one hundred thirty million, three hundred seventy-eight thousand, five hundred twenty-three".