40731636378 has 8 divisors (see below), whose sum is σ = 81463272768. Its totient is φ = 13577212124.

The previous prime is 40731636347. The next prime is 40731636389. The reversal of 40731636378 is 87363613704.

It is a sphenic number, since it is the product of 3 distinct primes.

40731636378 is an admirable number.

It is a super-2 number, since 2×40731636378² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3394303026 + ... + 3394303037.

It is an arithmetic number, because the mean of its divisors is an integer number (10182909096).

Almost surely, 2^40731636378 is an apocalyptic number.

40731636378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40731636378 is a wasteful number, since it uses less digits than its factorization.

40731636378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788606068.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The spelling of 40731636378 in words is "forty billion, seven hundred thirty-one million, six hundred thirty-six thousand, three hundred seventy-eight".