40451004999 has 18 divisors (see below), whose sum is σ = 60319052768. Its totient is φ = 26095255200.

The previous prime is 40451004991. The next prime is 40451005009. The reversal of 40451004999 is 99940015404.

40451004999 is a `hidden beast` number, since 4 + 0 + 4 + 510 + 0 + 49 + 99 = 666.

It is not a de Polignac number, because 40451004999 - 2³ = 40451004991 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 (40451004991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3353419 + ... + 3365459.

Almost surely, 2^40451004999 is an apocalyptic number.

40451004999 is a deficient number, since it is larger than the sum of its proper divisors (19868047769).

40451004999 is an frugal number, since it uses more digits than its factorization.

40451004999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24119 (or 12075 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 40451004999 in words is "forty billion, four hundred fifty-one million, four thousand, nine hundred ninety-nine".