42731287699 has 16 divisors (see below), whose sum is σ = 43322333472. Its totient is φ = 42145129728.

The previous prime is 42731287673. The next prime is 42731287721. The reversal of 42731287699 is 99678213724.

It is a cyclic number.

It is not a de Polignac number, because 42731287699 - 2¹¹ = 42731285651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42731287649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28056552 + ... + 28058074.

It is an arithmetic number, because the mean of its divisors is an integer number (2707645842).

Almost surely, 2^42731287699 is an apocalyptic number.

42731287699 is a deficient number, since it is larger than the sum of its proper divisors (591045773).

42731287699 is a wasteful number, since it uses less digits than its factorization.

42731287699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886.

The product of its digits is 9144576, while the sum is 58.

The spelling of 42731287699 in words is "forty-two billion, seven hundred thirty-one million, two hundred eighty-seven thousand, six hundred ninety-nine".