40378066734 has 8 divisors (see below), whose sum is σ = 80756133480. Its totient is φ = 13459355576.

The previous prime is 40378066697. The next prime is 40378066793. The reversal of 40378066734 is 43766087304.

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

40378066734 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3364838889 + ... + 3364838900.

It is an arithmetic number, because the mean of its divisors is an integer number (10094516685).

Almost surely, 2^40378066734 is an apocalyptic number.

40378066734 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.

40378066734 is a wasteful number, since it uses less digits than its factorization.

40378066734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729677794.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 40378066734 in words is "forty billion, three hundred seventy-eight million, sixty-six thousand, seven hundred thirty-four".