40914304351821 has 24 divisors (see below), whose sum is σ = 61287578497600. Its totient is φ = 27276065921952.

The previous prime is 40914304351819. The next prime is 40914304351841. The reversal of 40914304351821 is 12815340341904.

40914304351821 is a `hidden beast` number, since 4 + 0 + 9 + 1 + 4 + 30 + 435 + 182 + 1 = 666.

It is not a de Polignac number, because 40914304351821 - 2¹ = 40914304351819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40914304351801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77729280 + ... + 78253878.

Almost surely, 2^{40914304351821} is an apocalyptic number.

It is an amenable number.

40914304351821 is a deficient number, since it is larger than the sum of its proper divisors (20373274145779).

40914304351821 is an equidigital number, since it uses as much as digits as its factorization.

40914304351821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845567 (or 845555 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 40914304351821 in words is "forty trillion, nine hundred fourteen billion, three hundred four million, three hundred fifty-one thousand, eight hundred twenty-one".