40866939412 has 96 divisors (see below), whose sum is σ = 84272630400. Its totient is φ = 17175255552.

The previous prime is 40866939409. The next prime is 40866939457. The reversal of 40866939412 is 21493966804.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 40866939412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3027414 + ... + 3040882.

It is an arithmetic number, because the mean of its divisors is an integer number (877839900).

Almost surely, 2^40866939412 is an apocalyptic number.

It is an amenable number.

40866939412 is an abundant number, since it is smaller than the sum of its proper divisors (43405690988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40866939412 is a wasteful number, since it uses less digits than its factorization.

40866939412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13625 (or 13623 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 40866939412 in words is "forty billion, eight hundred sixty-six million, nine hundred thirty-nine thousand, four hundred twelve".