40678868942 has 4 divisors (see below), whose sum is σ = 61018303416. Its totient is φ = 20339434470.

The previous prime is 40678868941. The next prime is 40678868959. The reversal of 40678868942 is 24986887604.

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 (40678868941) 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, 10169717234 + ... + 10169717237.

It is an arithmetic number, because the mean of its divisors is an integer number (15254575854).

Almost surely, 2^40678868942 is an apocalyptic number.

40678868942 is a deficient number, since it is larger than the sum of its proper divisors (20339434474).

40678868942 is a wasteful number, since it uses less digits than its factorization.

40678868942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20339434473.

The product of its (nonzero) digits is 37158912, while the sum is 62.

The spelling of 40678868942 in words is "forty billion, six hundred seventy-eight million, eight hundred sixty-eight thousand, nine hundred forty-two".