40142252712 has 32 divisors (see below), whose sum is σ = 100401818400. Its totient is φ = 13374592704.

The previous prime is 40142252663. The next prime is 40142252791. The reversal of 40142252712 is 21725224104.

It is a super-2 number, since 2×40142252712² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40142252712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331503 + ... + 436094.

It is an arithmetic number, because the mean of its divisors is an integer number (3137556825).

Almost surely, 2^40142252712 is an apocalyptic number.

It is an amenable number.

40142252712 is an abundant number, since it is smaller than the sum of its proper divisors (60259565688).

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

40142252712 is a wasteful number, since it uses less digits than its factorization.

40142252712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769785 (or 769781 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

Adding to 40142252712 its reverse (21725224104), we get a palindrome (61867476816).

The spelling of 40142252712 in words is "forty billion, one hundred forty-two million, two hundred fifty-two thousand, seven hundred twelve".