40142263105542 has 64 divisors (see below), whose sum is σ = 90506332385280. Its totient is φ = 11784678595200.

The previous prime is 40142263105541. The next prime is 40142263105543. The reversal of 40142263105542 is 24550136224104.

It is an interprime number because it is at equal distance from previous prime (40142263105541) and next prime (40142263105543).

It is a super-2 number, since 2×40142263105542² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 40142263105542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142263105541) 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 31 ways as a sum of consecutive naturals, for example, 116739817 + ... + 117083172.

It is an arithmetic number, because the mean of its divisors is an integer number (1414161443520).

Almost surely, 2^{40142263105542} is an apocalyptic number.

40142263105542 is an abundant number, since it is smaller than the sum of its proper divisors (50364069279738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40142263105542 is a wasteful number, since it uses less digits than its factorization.

40142263105542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233823109.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 40142263105542 its reverse (24550136224104), we get a palindrome (64692399329646).

The spelling of 40142263105542 in words is "forty trillion, one hundred forty-two billion, two hundred sixty-three million, one hundred five thousand, five hundred forty-two".