40425004128778 has 16 divisors (see below), whose sum is σ = 62144163518976. Its totient is φ = 19710722539360.

The previous prime is 40425004128739. The next prime is 40425004128799. The reversal of 40425004128778 is 87782140052404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109710826 + ... + 110078677.

It is an arithmetic number, because the mean of its divisors is an integer number (3884010219936).

Almost surely, 2^{40425004128778} is an apocalyptic number.

40425004128778 is a deficient number, since it is larger than the sum of its proper divisors (21719159390198).

40425004128778 is a wasteful number, since it uses less digits than its factorization.

40425004128778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219791789.

The product of its (nonzero) digits is 4014080, while the sum is 52.

The spelling of 40425004128778 in words is "forty trillion, four hundred twenty-five billion, four million, one hundred twenty-eight thousand, seven hundred seventy-eight".