42840949613 has 16 divisors (see below), whose sum is σ = 53427849216. Its totient is φ = 33372710640.

The previous prime is 42840949597. The next prime is 42840949639. The reversal of 42840949613 is 31694904824.

42840949613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42840949613 - 2⁴ = 42840949597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42840949643) 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, 186320 + ... + 346982.

It is an arithmetic number, because the mean of its divisors is an integer number (3339240576).

Almost surely, 2^42840949613 is an apocalyptic number.

It is an amenable number.

42840949613 is a deficient number, since it is larger than the sum of its proper divisors (10586899603).

42840949613 is a wasteful number, since it uses less digits than its factorization.

42840949613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164144.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 42840949613 in words is "forty-two billion, eight hundred forty million, nine hundred forty-nine thousand, six hundred thirteen".