40142185220743 has 8 divisors (see below), whose sum is σ = 40804722241920. Its totient is φ = 39482346925560.

The previous prime is 40142185220707. The next prime is 40142185220771. The reversal of 40142185220743 is 34702258124104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40142185220743 - 2⁹ = 40142185220231 is a prime.

It is a super-2 number, since 2×40142185220743² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40142185220743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142185223743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 674651505 + ... + 674711002.

It is an arithmetic number, because the mean of its divisors is an integer number (5100590280240).

Almost surely, 2^{40142185220743} is an apocalyptic number.

40142185220743 is a deficient number, since it is larger than the sum of its proper divisors (662537021177).

40142185220743 is a wasteful number, since it uses less digits than its factorization.

40142185220743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349362997.

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 40142185220743 in words is "forty trillion, one hundred forty-two billion, one hundred eighty-five million, two hundred twenty thousand, seven hundred forty-three".