40354399999 has 8 divisors (see below), whose sum is σ = 40628994560. Its totient is φ = 40080735576.

The previous prime is 40354399997. The next prime is 40354400069. The reversal of 40354399999 is 99999345304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40354399999 - 2¹ = 40354399997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40354399999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40354399993) 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, 145359 + ... + 319120.

It is an arithmetic number, because the mean of its divisors is an integer number (5078624320).

Almost surely, 2^40354399999 is an apocalyptic number.

40354399999 is a deficient number, since it is larger than the sum of its proper divisors (274594561).

40354399999 is a wasteful number, since it uses less digits than its factorization.

40354399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465069.

The product of its (nonzero) digits is 42515280, while the sum is 64.

The spelling of 40354399999 in words is "forty billion, three hundred fifty-four million, three hundred ninety-nine thousand, nine hundred ninety-nine".