42293649391 has 8 divisors (see below), whose sum is σ = 48381597824. Its totient is φ = 36217200600.

The previous prime is 42293649371. The next prime is 42293649443. The reversal of 42293649391 is 19394639224.

It is a happy number.

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

It is not a de Polignac number, because 42293649391 - 2⁷ = 42293649263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42293649331) 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, 2867025 + ... + 2881738.

It is an arithmetic number, because the mean of its divisors is an integer number (6047699728).

Almost surely, 2^42293649391 is an apocalyptic number.

42293649391 is a deficient number, since it is larger than the sum of its proper divisors (6087948433).

42293649391 is a wasteful number, since it uses less digits than its factorization.

42293649391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749821.

The product of its digits is 2519424, while the sum is 52.

The spelling of 42293649391 in words is "forty-two billion, two hundred ninety-three million, six hundred forty-nine thousand, three hundred ninety-one".