42913993291 has 8 divisors (see below), whose sum is σ = 46216691024. Its totient is φ = 39611527200.

The previous prime is 42913993273. The next prime is 42913993303. The reversal of 42913993291 is 19239931924.

It is a happy number.

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 42913993291 - 2¹³ = 42913985099 is a prime.

It is a super-2 number, since 2×42913993291² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42913993271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626641 + ... + 691741.

It is an arithmetic number, because the mean of its divisors is an integer number (5777086378).

Almost surely, 2^42913993291 is an apocalyptic number.

42913993291 is a deficient number, since it is larger than the sum of its proper divisors (3302697733).

42913993291 is a wasteful number, since it uses less digits than its factorization.

42913993291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115821.

The product of its digits is 944784, while the sum is 52.

The spelling of 42913993291 in words is "forty-two billion, nine hundred thirteen million, nine hundred ninety-three thousand, two hundred ninety-one".