42595770691 has 4 divisors (see below), whose sum is σ = 44064590400. Its totient is φ = 41126950984.

The previous prime is 42595770677. The next prime is 42595770719. The reversal of 42595770691 is 19607759524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42595770691 - 2¹³ = 42595762499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42595770661) 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, 734409811 + ... + 734409868.

It is an arithmetic number, because the mean of its divisors is an integer number (11016147600).

Almost surely, 2^42595770691 is an apocalyptic number.

42595770691 is a deficient number, since it is larger than the sum of its proper divisors (1468819709).

42595770691 is a wasteful number, since it uses less digits than its factorization.

42595770691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468819708.

The product of its (nonzero) digits is 4762800, while the sum is 55.

The spelling of 42595770691 in words is "forty-two billion, five hundred ninety-five million, seven hundred seventy thousand, six hundred ninety-one".