40729662328778 has 16 divisors (see below), whose sum is σ = 61192776018816. Its totient is φ = 20332071864720.

The previous prime is 40729662328777. The next prime is 40729662328811. The reversal of 40729662328778 is 87782326692704.

It is not an unprimeable number, because it can be changed into a prime (40729662328777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55736675 + ... + 56462697.

It is an arithmetic number, because the mean of its divisors is an integer number (3824548501176).

Almost surely, 2^{40729662328778} is an apocalyptic number.

40729662328778 is a deficient number, since it is larger than the sum of its proper divisors (20463113690038).

40729662328778 is a wasteful number, since it uses less digits than its factorization.

40729662328778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771109.

The product of its (nonzero) digits is 682795008, while the sum is 71.

The spelling of 40729662328778 in words is "forty trillion, seven hundred twenty-nine billion, six hundred sixty-two million, three hundred twenty-eight thousand, seven hundred seventy-eight".