40143728375 has 32 divisors (see below), whose sum is σ = 51564045312. Its totient is φ = 31189620000.

The previous prime is 40143728321. The next prime is 40143728377. The reversal of 40143728375 is 57382734104.

It is a de Polignac number, because none of the positive numbers 2^k-40143728375 is a prime.

It is a super-2 number, since 2×40143728375² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40143728377) 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 31 ways as a sum of consecutive naturals, for example, 560870 + ... + 628380.

It is an arithmetic number, because the mean of its divisors is an integer number (1611376416).

Almost surely, 2^40143728375 is an apocalyptic number.

40143728375 is a deficient number, since it is larger than the sum of its proper divisors (11420316937).

40143728375 is an equidigital number, since it uses as much as digits as its factorization.

40143728375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67664 (or 67654 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 40143728375 in words is "forty billion, one hundred forty-three million, seven hundred twenty-eight thousand, three hundred seventy-five".