40816708385 has 16 divisors (see below), whose sum is σ = 51116745600. Its totient is φ = 31229299200.

The previous prime is 40816708381. The next prime is 40816708421. The reversal of 40816708385 is 58380761804.

It is not a de Polignac number, because 40816708385 - 2² = 40816708381 is a prime.

It is a super-2 number, since 2×40816708385² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40816708381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979985 + ... + 1020785.

It is an arithmetic number, because the mean of its divisors is an integer number (3194796600).

Almost surely, 2^40816708385 is an apocalyptic number.

It is an amenable number.

40816708385 is a deficient number, since it is larger than the sum of its proper divisors (10300037215).

40816708385 is a wasteful number, since it uses less digits than its factorization.

40816708385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49528.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 40816708385 in words is "forty billion, eight hundred sixteen million, seven hundred eight thousand, three hundred eighty-five".