40078407405 has 16 divisors (see below), whose sum is σ = 64263962880. Its totient is φ = 21328980288.

The previous prime is 40078407403. The next prime is 40078407463. The reversal of 40078407405 is 50470487004.

It is not a de Polignac number, because 40078407405 - 2¹ = 40078407403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078407403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2878470 + ... + 2892359.

It is an arithmetic number, because the mean of its divisors is an integer number (4016497680).

Almost surely, 2^40078407405 is an apocalyptic number.

It is an amenable number.

40078407405 is a deficient number, since it is larger than the sum of its proper divisors (24185555475).

40078407405 is a wasteful number, since it uses less digits than its factorization.

40078407405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5771300.

The product of its (nonzero) digits is 125440, while the sum is 39.

The spelling of 40078407405 in words is "forty billion, seventy-eight million, four hundred seven thousand, four hundred five".