42986955693 has 16 divisors (see below), whose sum is σ = 64682568000. Its totient is φ = 25154330880.

The previous prime is 42986955689. The next prime is 42986955719. The reversal of 42986955693 is 39655968924.

It is not a de Polignac number, because 42986955693 - 2² = 42986955689 is a prime.

It is a super-2 number, since 2×42986955693² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42986955623) 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, 22458268 + ... + 22460181.

It is an arithmetic number, because the mean of its divisors is an integer number (4042660500).

Almost surely, 2^42986955693 is an apocalyptic number.

It is an amenable number.

42986955693 is a deficient number, since it is larger than the sum of its proper divisors (21695612307).

42986955693 is a wasteful number, since it uses less digits than its factorization.

42986955693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44918492.

The product of its digits is 125971200, while the sum is 66.

The spelling of 42986955693 in words is "forty-two billion, nine hundred eighty-six million, nine hundred fifty-five thousand, six hundred ninety-three".