40291210012 has 24 divisors (see below), whose sum is σ = 74476785152. Its totient is φ = 19042354800.

The previous prime is 40291209991. The next prime is 40291210021. The reversal of 40291210012 is 21001219204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3772914 + ... + 3783577.

Almost surely, 2^40291210012 is an apocalyptic number.

It is an amenable number.

40291210012 is a deficient number, since it is larger than the sum of its proper divisors (34185575140).

40291210012 is a wasteful number, since it uses less digits than its factorization.

40291210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556569 (or 7556567 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 40291210012 its reverse (21001219204), we get a palindrome (61292429216).

The spelling of 40291210012 in words is "forty billion, two hundred ninety-one million, two hundred ten thousand, twelve".