40906851868 has 12 divisors (see below), whose sum is σ = 75797990352. Its totient is φ = 19250283200.

The previous prime is 40906851863. The next prime is 40906851911. The reversal of 40906851868 is 86815860904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40906851863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300785608 + ... + 300785743.

It is an arithmetic number, because the mean of its divisors is an integer number (6316499196).

Almost surely, 2^40906851868 is an apocalyptic number.

It is an amenable number.

40906851868 is a deficient number, since it is larger than the sum of its proper divisors (34891138484).

40906851868 is a wasteful number, since it uses less digits than its factorization.

40906851868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601571372 (or 601571370 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 40906851868 in words is "forty billion, nine hundred six million, eight hundred fifty-one thousand, eight hundred sixty-eight".