40405706249377 has 64 divisors (see below), whose sum is σ = 47510385408000. Its totient is φ = 33650587514880.

The previous prime is 40405706249317. The next prime is 40405706249383. The reversal of 40405706249377 is 77394260750404.

It is a de Polignac number, because none of the positive numbers 2^k-40405706249377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40405706249317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12021928177 + ... + 12021931537.

It is an arithmetic number, because the mean of its divisors is an integer number (742349772000).

Almost surely, 2^{40405706249377} is an apocalyptic number.

It is an amenable number.

40405706249377 is a deficient number, since it is larger than the sum of its proper divisors (7104679158623).

40405706249377 is a wasteful number, since it uses less digits than its factorization.

40405706249377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486.

The product of its (nonzero) digits is 35562240, while the sum is 58.

The spelling of 40405706249377 in words is "forty trillion, four hundred five billion, seven hundred six million, two hundred forty-nine thousand, three hundred seventy-seven".