40684348638812 has 24 divisors (see below), whose sum is σ = 71506867068000. Its totient is φ = 20253824197376.

The previous prime is 40684348638793. The next prime is 40684348638841. The reversal of 40684348638812 is 21883684348604.

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, 17113064 + ... + 19344912.

It is an arithmetic number, because the mean of its divisors is an integer number (2979452794500).

Almost surely, 2^{40684348638812} is an apocalyptic number.

It is an amenable number.

40684348638812 is a deficient number, since it is larger than the sum of its proper divisors (30822518429188).

40684348638812 is a wasteful number, since it uses less digits than its factorization.

40684348638812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251645 (or 2251643 counting only the distinct ones).

The product of its (nonzero) digits is 169869312, while the sum is 65.

The spelling of 40684348638812 in words is "forty trillion, six hundred eighty-four billion, three hundred forty-eight million, six hundred thirty-eight thousand, eight hundred twelve".