42806688697 has 4 divisors (see below), whose sum is σ = 42812519296. Its totient is φ = 42800858100.

The previous prime is 42806688649. The next prime is 42806688713. The reversal of 42806688697 is 79688660824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42806688697 - 2³¹ = 40659205049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42806688797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2904273 + ... + 2918974.

It is an arithmetic number, because the mean of its divisors is an integer number (10703129824).

Almost surely, 2^42806688697 is an apocalyptic number.

It is an amenable number.

42806688697 is a deficient number, since it is larger than the sum of its proper divisors (5830599).

42806688697 is an equidigital number, since it uses as much as digits as its factorization.

42806688697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830598.

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 42806688697 in words is "forty-two billion, eight hundred six million, six hundred eighty-eight thousand, six hundred ninety-seven".