4000908738946 has 12 divisors (see below), whose sum is σ = 6981177493638. Its totient is φ = 1714675173792.

The previous prime is 4000908738917. The next prime is 4000908738991. The reversal of 4000908738946 is 6498378090004.

It can be written as a sum of positive squares in only one way, i.e., 3414405491721 + 586503247225 = 1847811^2 + 765835^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20412799591 + ... + 20412799786.

Almost surely, 2^{4000908738946} is an apocalyptic number.

4000908738946 is a deficient number, since it is larger than the sum of its proper divisors (2980268754692).

4000908738946 is a wasteful number, since it uses less digits than its factorization.

4000908738946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40825599393 (or 40825599386 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 4000908738946 in words is "four trillion, nine hundred eight million, seven hundred thirty-eight thousand, nine hundred forty-six".