42986955691 has 8 divisors (see below), whose sum is σ = 43081956864. Its totient is φ = 42892019520.

The previous prime is 42986955689. The next prime is 42986955719. The reversal of 42986955691 is 19655968924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42986955691 - 2¹ = 42986955689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42986955601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451926 + ... + 1481236.

It is an arithmetic number, because the mean of its divisors is an integer number (5385244608).

Almost surely, 2^42986955691 is an apocalyptic number.

42986955691 is a deficient number, since it is larger than the sum of its proper divisors (95001173).

42986955691 is a wasteful number, since it uses less digits than its factorization.

42986955691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32501.

The product of its digits is 41990400, while the sum is 64.

The spelling of 42986955691 in words is "forty-two billion, nine hundred eighty-six million, nine hundred fifty-five thousand, six hundred ninety-one".