40921848388 has 6 divisors (see below), whose sum is σ = 71613234686. Its totient is φ = 20460924192.

The previous prime is 40921848349. The next prime is 40921848421. The reversal of 40921848388 is 88384812904.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21591951364 + 19329897024 = 146942^2 + 139032^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5115231045 + ... + 5115231052.

Almost surely, 2^40921848388 is an apocalyptic number.

It is an amenable number.

40921848388 is a deficient number, since it is larger than the sum of its proper divisors (30691386298).

40921848388 is a wasteful number, since it uses less digits than its factorization.

40921848388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10230462101 (or 10230462099 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 55.

The spelling of 40921848388 in words is "forty billion, nine hundred twenty-one million, eight hundred forty-eight thousand, three hundred eighty-eight".