40685909212 has 24 divisors (see below), whose sum is σ = 76684297536. Its totient is φ = 18776395968.

The previous prime is 40685909207. The next prime is 40685909213. The reversal of 40685909212 is 21290958604.

40685909212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40685909213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672318 + ... + 730330.

It is an arithmetic number, because the mean of its divisors is an integer number (3195179064).

Almost surely, 2^40685909212 is an apocalyptic number.

It is an amenable number.

40685909212 is a deficient number, since it is larger than the sum of its proper divisors (35998388324).

40685909212 is a wasteful number, since it uses less digits than its factorization.

40685909212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71517 (or 71515 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 40685909212 in words is "forty billion, six hundred eighty-five million, nine hundred nine thousand, two hundred twelve".