40860687542 has 4 divisors (see below), whose sum is σ = 61291031316. Its totient is φ = 20430343770.

The previous prime is 40860687541. The next prime is 40860687589. The reversal of 40860687542 is 24578606804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40860687541) 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 as a sum of consecutive naturals, namely, 10215171884 + ... + 10215171887.

It is an arithmetic number, because the mean of its divisors is an integer number (15322757829).

Almost surely, 2^40860687542 is an apocalyptic number.

40860687542 is a deficient number, since it is larger than the sum of its proper divisors (20430343774).

40860687542 is a wasteful number, since it uses less digits than its factorization.

40860687542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20430343773.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 40860687542 in words is "forty billion, eight hundred sixty million, six hundred eighty-seven thousand, five hundred forty-two".