40378655758 has 16 divisors (see below), whose sum is σ = 70830334080. Its totient is φ = 16902692856.

The previous prime is 40378655699. The next prime is 40378655791. The reversal of 40378655758 is 85755687304.

It is a happy number.

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, 33536488 + ... + 33537691.

It is an arithmetic number, because the mean of its divisors is an integer number (4426895880).

Almost surely, 2^40378655758 is an apocalyptic number.

40378655758 is a deficient number, since it is larger than the sum of its proper divisors (30451678322).

40378655758 is a wasteful number, since it uses less digits than its factorization.

40378655758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67074231.

The product of its (nonzero) digits is 28224000, while the sum is 58.

The spelling of 40378655758 in words is "forty billion, three hundred seventy-eight million, six hundred fifty-five thousand, seven hundred fifty-eight".