40012451534542 has 16 divisors (see below), whose sum is σ = 64718471034000. Its totient is φ = 18490991722560.

The previous prime is 40012451534513. The next prime is 40012451534551. The reversal of 40012451534542 is 24543515421004.

It is a junction number, because it is equal to n+sod(n) for n = 40012451534495 and 40012451534504.

It is a congruent number.

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, 12840964917 + ... + 12840968032.

It is an arithmetic number, because the mean of its divisors is an integer number (4044904439625).

Almost surely, 2^{40012451534542} is an apocalyptic number.

40012451534542 is a deficient number, since it is larger than the sum of its proper divisors (24706019499458).

40012451534542 is a wasteful number, since it uses less digits than its factorization.

40012451534542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25681933011.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 40012451534542 its reverse (24543515421004), we get a palindrome (64555966955546).

The spelling of 40012451534542 in words is "forty trillion, twelve billion, four hundred fifty-one million, five hundred thirty-four thousand, five hundred forty-two".