42815807999 has 8 divisors (see below), whose sum is σ = 43873885440. Its totient is φ = 41768810200.

The previous prime is 42815807989. The next prime is 42815808029. The reversal of 42815807999 is 99970851824.

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 42815807999 - 2¹² = 42815803903 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 (42815807989) 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, 2762087 + ... + 2777544.

It is an arithmetic number, because the mean of its divisors is an integer number (5484235680).

Almost surely, 2^42815807999 is an apocalyptic number.

42815807999 is a deficient number, since it is larger than the sum of its proper divisors (1058077441).

42815807999 is a wasteful number, since it uses less digits than its factorization.

42815807999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539821.

The product of its (nonzero) digits is 13063680, while the sum is 62.

The spelling of 42815807999 in words is "forty-two billion, eight hundred fifteen million, eight hundred seven thousand, nine hundred ninety-nine".